// JavaScript Document

   
function MakeAdults() {
	
	if (document.form1.multitrip.value==1) {
	//alert("makedays mt");
		if (document.form1.MTType69.value > 0) {
			document.form1.NumAdults.value = document.form1.MTType69.value; 
		}
		if (document.form1.MTType65.value > 0) {
			document.form1.NumAdults.value = document.form1.MTType65.value; 
		}
	}

	if (document.form1.multitrip.value==0) {
		
		NumAdults = parseInt(document.form1.Adults7074.value) + parseInt(document.form1.Adults6669.value)+ parseInt(document.form1.Adults6165.value) + parseInt(document.form1.Adults1860.value) + parseInt(document.form1.Adults1845.value);

	document.form1.NumAdults.value = NumAdults;
	}
}

function createDays(){
	
	if (document.form1.PolicyType.value == "Annual Multitrip"){
	document.form1.NumDays.value = 365;
	}
	else {
	document.form1.FromDate.value = document.form1.frommonth.value + "/" + document.form1.fromday.value + "/" + document.form1.fromyear.value;
	document.form1.ToDate.value = document.form1.tomonth.value + "/" + document.form1.today.value + "/" + document.form1.toyear.value;
	dateDiff();
	}
}



function switchdisplay(){
	//alert("check");
	
	createDays();
	formObj = document.form1;
	PolicyValue = formObj.PolicyType.value;
	
	if (PolicyValue == "Annual Multitrip")
		{
		//alert("Annual Multi-trip");	
		getObj("ChildCover").style.display="block";
		getObj("DestinationSingle").style.display="none";
		getObj("DestinationAnnual").style.display="block";
		getObj("BusinessCover").style.display="block";
		getObj("RetDate").style.display="none";
		getObj("StartDate").style.display="block";
		getObj("DepDate").style.display="none";
		getObj("DPT").style.display="block";
		getObj("DPT31").style.display="none";
		formObj.multitrip.value = "1";
		formObj.Adults1845.value = "0";
		formObj.Adults6669.value = "0";
		formObj.Adults6165.value = "0";
		formObj.Adults1860.value = "0";
		formObj.Adults7074.value = "0";
		formObj.MTAge.value = 69;
		getObj("MTShowAdultAge").style.display="block";
		formObj.SelectedDPT.value = formObj.DPT.value;

		if (formObj.mtArea.value == "Europe") {	
		//alert("Europe");
			getObj("WintersportsCover").style.display="block";
			formObj.ShowSki.value = "1";
			formObj.ShowGolf.value = "1";
			formObj.ShowBusiness.value = "1";
			formObj.ShowMbike.value = "1";
			getObj("MotorcycleCover").style.display="block";
			getObj("GolfCover").style.display="block";
			getObj("MTAdults65").style.display="none";
			getObj("MTAdults69").style.display="block";
			getObj("Adults18-45").style.display="none";
			getObj("Adults18-60").style.display="none";
			getObj("Adults61-65").style.display="none";
			getObj("Adults66-69").style.display="none";		
			getObj("Adults70-74").style.display="none";
			
			//if (formObj.ShowSki.value == "Yes") formObj.Wintersports.checked = true;
			
			if (formObj.Motorcycle.checked == true) {
				getObj("MTAdults69").style.display="none";
				getObj("MTAdults65").style.display="block";
				getObj("BusinessCover").style.display="none";
				formObj.ShowSki.value = "1";
				formObj.ShowGolf.value = "1";
				formObj.ShowBusiness.value = "0";
				formObj.ShowMbike.value = "1";
				formObj.Business.checked = false;
				formObj.MTAge.value = 65;
				getObj("DPT").style.display="none";
				getObj("DPT31").style.display="block";
				formObj.SelectedDPT.value = formObj.DPT31.value;
			}
			if (formObj.Wintersports.checked == true) {
				getObj("MTAdults69").style.display="none";
				getObj("MTAdults65").style.display="block";
				formObj.MTAge.value = 65;
			}
		}
		
		if (formObj.mtArea.value == "Worldwide inc. USA / Canada") {
		//alert("WWInc");
			getObj("WintersportsCover").style.display="block";
			getObj("MotorcycleCover").style.display="none";
			getObj("GolfCover").style.display="block";
			getObj("MTAdults65").style.display="none";
			getObj("MTAdults69").style.display="block";
			getObj("Adults18-45").style.display="none";
			getObj("Adults18-60").style.display="none";
			getObj("Adults61-65").style.display="none";
			getObj("Adults66-69").style.display="none";		
			getObj("Adults70-74").style.display="none";
			formObj.Motorcycle.checked = false;
			formObj.ShowSki.value = "1";
			formObj.ShowGolf.value = "1";
			formObj.ShowBusiness.value = "1";
			formObj.ShowMbike.value = "0";
			//if (formObj.ShowSki.value == "Yes") formObj.Wintersports.checked = true;
			
			if (formObj.Wintersports.checked == true) {
				getObj("MTAdults69").style.display="none";
				getObj("MTAdults65").style.display="block";
				formObj.MTAge.value = 65;
			}
		}
		
		if (formObj.Business.checked == true) {
				
				getObj("MotorcycleCover").style.display="none";
				formObj.Motorcycle.checked = false;
				getObj("MTAdults65").style.display="block";
				getObj("MTAdults69").style.display="none";
				formObj.MTAge.value = 65;
				formObj.ShowSki.value = "1";
				formObj.ShowGolf.value = "1";
				formObj.ShowBusiness.value = "1";
				formObj.ShowMbike.value = "0";
			}
		
		if (formObj.DPT.value == 45 || formObj.DPT.value == 60) {
			getObj("MTAdults65").style.display="block";
			getObj("MTAdults69").style.display="none";
			formObj.MTAge.value = 65;
		}
		
		if (formObj.MTAge.value == 65) {
			if (formObj.MTType65.selectedIndex==0) document.form1.NumAdults.value = "0";
			if (formObj.MTType65.selectedIndex==1) document.form1.NumAdults.value = "1";
			if (formObj.MTType65.selectedIndex==2) document.form1.NumAdults.value = "2";	
		} 
		if (formObj.MTAge.value == 69) {
			if (formObj.MTType69.selectedIndex==0) document.form1.NumAdults.value = "0";
			if (formObj.MTType69.selectedIndex==1) document.form1.NumAdults.value = "1";
			if (formObj.MTType69.selectedIndex==2) document.form1.NumAdults.value = "2";
		}
		
		if (formObj.MTAge.value == 69) {
			formObj.MTType65.selectedIndex = 0;
		}
		else  {
			formObj.MTType69.selectedIndex = 0;
		}
	
	}	
	
	if (PolicyValue == "Single Trip")
		{
		if(document.form1.NumDays.value >365) {alert("Sorry, we cannot cover a trip of this duration")};
		document.form1.NumAdults.value = "0"
		formObj.multitrip.value = "0";
		formObj.MTType65.selectedIndex = 0;
		formObj.MTType69.selectedIndex = 0;
		getObj("BusinessCover").style.display="none";
		getObj("RetDate").style.display="block";
		getObj("StartDate").style.display="none";
		getObj("DepDate").style.display="block";
		getObj("DestinationSingle").style.display="block";
		getObj("DestinationAnnual").style.display="none";
		getObj("DPT").style.display="none";
		getObj("DPT31").style.display="none";
		getObj("MTAdults65").style.display="none";
		getObj("MTAdults69").style.display="none";
		formObj.Adults1845.value = "0";
		getObj("MTShowAdultAge").style.display="none";
		formObj.ShowSki.value = "1";
		formObj.ShowGolf.value = "1";
		formObj.ShowBusiness.value = "0";
		formObj.ShowMbike.value = "1";
		getObj("MotorcycleCover").style.display="block";
			if (formObj.STArea.value == "Worldwide inc. USA / Canada") {			
				getObj("WintersportsCover").style.display="block";
				getObj("MotorcycleCover").style.display="none";
				getObj("GolfCover").style.display="block";
				formObj.ShowSki.value = "1";
				formObj.ShowGolf.value = "1";
				formObj.ShowMbike.value = "0";
				getObj("Adults18-45").style.display="none";
				getObj("Adults18-60").style.display="block";
				getObj("Adults61-65").style.display="block";
				getObj("Adults66-69").style.display="block";
				getObj("Adults70-74").style.display="none";
				formObj.Adults7074.value = "0";
				formObj.Motorcycle.checked = false;
				//if (formObj.ShowSki.value == "1") formObj.Wintersports.checked = true;
			} 
			if (formObj.STArea.value == "Worldwide exc. USA / Canada") {			
				getObj("WintersportsCover").style.display="block";
				getObj("MotorcycleCover").style.display="none";
				getObj("GolfCover").style.display="block";	
				formObj.ShowSki.value = "1";
				formObj.ShowGolf.value = "0";
				formObj.ShowMbike.value = "1";
				getObj("Adults18-45").style.display="none";
				getObj("Adults18-60").style.display="block";
				getObj("Adults61-65").style.display="block";
				getObj("Adults66-69").style.display="block";
				getObj("Adults70-74").style.display="none";
				formObj.Adults7074.value = "0";
				formObj.Motorcycle.checked = false;
				//if (formObj.ShowSki.value == "1") formObj.Wintersports.checked = true;
			} 
			
			if (formObj.STArea.value == "Europe" || formObj.STArea.value == "Eire / United Kingdom")  {				
				getObj("Adults18-45").style.display="none";
				getObj("Adults18-60").style.display="block";
				getObj("Adults61-65").style.display="block";
				getObj("Adults66-69").style.display="block";
				getObj("Adults70-74").style.display="block";
				getObj("MotorcycleCover").style.display="block";
				//formObj.Adults7074.value = "0";
				
				if (formObj.Motorcycle.checked == true) {
					formObj.Wintersports.checked = false;
					formObj.Golf.checked = false;
					formObj.ShowSki.value = "0";
					formObj.ShowGolf.value = "0";
					getObj("WintersportsCover").style.display="none";
					getObj("GolfCover").style.display="none";
					formObj.Adults7074.value = "0";
					getObj("Adults70-74").style.display="none";
				} else {
					getObj("WintersportsCover").style.display="block";
					//if (formObj.ShowSki.value == "1") formObj.Wintersports.checked = true;
					getObj("GolfCover").style.display="block";
					if (formObj.Wintersports.checked == false) getObj("Adults70-74").style.display="block";
					formObj.ShowGolf.value = "1";

				}
			
				if (formObj.Wintersports.checked == true) {

					formObj.Adults7074.value = "0";
					getObj("Adults70-74").style.display="none";
					
				} else {
					getObj("MotorcycleCover").style.display="block";
					if (formObj.Motorcycle.checked == false) getObj("Adults70-74").style.display="block";
				}
				
				if (formObj.Golf.checked == true && formObj.Motorcycle.checked == false) {
					//formObj.Motorcycle.checked = false;
					//getObj("MotorcycleCover").style.display="none";
					
				}
				
			}
			
			if (formObj.STArea.value == "Eire / United Kingdom") {		
				getObj("WintersportsCover").style.display="block";
				getObj("MotorcycleCover").style.display="none";
				getObj("GolfCover").style.display="block";		
				getObj("Adults18-45").style.display="none";
				getObj("Adults18-60").style.display="block";
				getObj("Adults61-65").style.display="block";
				getObj("Adults66-69").style.display="block";
				getObj("Adults70-74").style.display="block";
				formObj.Motorcycle.checked = false;
				//if (formObj.ShowSki.value == "Yes") formObj.Wintersports.checked = true;
				if (formObj.Wintersports.checked == true) {
					formObj.Adults7074.value = "0";
					getObj("Adults70-74").style.display="none";
				}
				if (formObj.Wintersports.checked == false) getObj("Adults70-74").style.display="block";
			}

}	
	
		
if (PolicyValue == "Discovery Backpackers")
		{
		if(document.form1.NumDays.value >545) {alert("Sorry, we cannot cover a trip of this duration")};
		document.form1.NumAdults.value = "0"
		formObj.MTType65.selectedIndex = 0;
		formObj.MTType69.selectedIndex = 0;
		formObj.ShowBusiness.value = "0";
		formObj.ShowMbike.value = "0";
		
		formObj.multitrip.value = "0";
		getObj("DestinationSingle").style.display="block";
		getObj("DestinationAnnual").style.display="none";	
		if (formObj.STArea.value == "Eire / United Kingdom") {
			formObj.STArea.value = "Europe"	;
		}
		getObj("BusinessCover").style.display="none";
		getObj("MotorcycleCover").style.display="none";
		getObj("StartDate").style.display="none";
		getObj("DepDate").style.display="block";
		getObj("RetDate").style.display="block";
		getObj("DPT").style.display="none";
		getObj("DPT31").style.display="none";
		getObj("GolfCover").style.display="block";
		getObj("MTAdults65").style.display="none";
		getObj("MTAdults69").style.display="none";
		getObj("Adults18-45").style.display="block";
		getObj("Adults18-60").style.display="none";
		getObj("Adults61-65").style.display="none";
		getObj("Adults66-69").style.display="none";
		getObj("Adults70-74").style.display="none";
		getObj("ChildCover").style.display="block";
		formObj.Infants.value = "0";
		formObj.Children.value = "0";
		formObj.NumAdults.value = "0";
		formObj.NumChildren.value = "0";
		formObj.Adults6669.value = "0";
		formObj.Adults6165.value = "0";
		formObj.Adults1860.value = "0";
		formObj.Adults7074.value = "0";
		getObj("MTShowAdultAge").style.display="none";
	}		


if (PolicyValue == "Discovery Ski Season")
		{
		if(document.form1.NumDays.value >545) {alert("Sorry, we cannot cover a trip of this duration")};
		document.form1.NumAdults.value = "0"
		formObj.multitrip.value = "0";
		formObj.MTType65.selectedIndex = 0;
		formObj.MTType69.selectedIndex = 0;
		formObj.ShowSki.value = "1";
		formObj.ShowGolf.value = "1";
		formObj.ShowBusiness.value = "0";
		formObj.ShowMbike.value = "0";
		getObj("BusinessCover").style.display="none";
		getObj("MotorcycleCover").style.display="none";
		getObj("DestinationSingle").style.display="block";
		getObj("DestinationAnnual").style.display="none";
		if (formObj.STArea.value == "Eire / United Kingdom") {
			formObj.STArea.value = "Europe"	;
		}
		getObj("RetDate").style.display="block";
		getObj("DPT").style.display="none";
		getObj("DPT31").style.display="none";
		getObj("GolfCover").style.display="block";
		getObj("MTAdults65").style.display="none";
		getObj("MTAdults69").style.display="none";
		getObj("Adults18-45").style.display="block";
		getObj("Adults18-60").style.display="none";
		getObj("Adults61-65").style.display="none";
		getObj("Adults66-69").style.display="none";
		getObj("Adults70-74").style.display="none";
		getObj("ChildCover").style.display="block";
		formObj.Adults6669.value = "0";
		formObj.Adults6165.value = "0";
		formObj.Adults1860.value = "0";
		formObj.Adults7074.value = "0";
		formObj.Wintersports.checked = true;
		getObj("MTShowAdultAge").style.display="none";
		
}
}

function Dswitchdisplay(){
	createDays();
	formObj = document.form1;
	PolicyValue = formObj.PolicyType.value;
	//alert(PolicyValue);
if (PolicyValue == "Discovery Backpackers")
		{
		document.form1.NumAdults.value = "0"
		if(document.form1.NumDays.value >545) {alert("Sorry, we cannot cover a trip of this duration")};
		formObj.multitrip.value = "0";
		getObj("DestinationSingle").style.display="block";
		getObj("DestinationAnnual").style.display="none";
		getObj("DPT").style.display="none";
		getObj("DPT31").style.display="none";
		getObj("GolfCover").style.display="block";
		getObj("MTAdults65").style.display="none";
		getObj("MTAdults69").style.display="none";
		getObj("Adults18-45").style.display="block";
		getObj("Adults18-60").style.display="none";
		getObj("Adults61-65").style.display="none";
		getObj("Adults66-69").style.display="none";
		getObj("Adults70-74").style.display="none";
		getObj("ChildCover").style.display="block";
		getObj("BusinessCover").style.display="none";
		getObj("GolfCover").style.display="none";
		if (formObj.STArea.value == "Eire / United Kingdom") {
			formObj.STArea.value = "Europe"	;
		}
		getObj("DepDate").style.display="block";
		getObj("RetDate").style.display="block";
		getObj("StartDate").style.display="none";
		getObj("Adults18-45").style.display="block";
		getObj("ChildCover").style.display="block";
		formObj.Infants.value = "0";
		formObj.Children.value = "0";
		formObj.NumAdults.value = "0";
		formObj.NumChildren.value = "0";
		formObj.Adults6669.value = "0";
		formObj.Adults6165.value = "0";
		formObj.Adults1860.value = "0";
		formObj.Adults7074.value = "0";
		formObj.Wintersports.checked = false;
	}		


if (PolicyValue == "Discovery Ski Season")
		{

		document.form1.NumAdults.value = "0"
		if(document.form1.NumDays.value >545) {alert("Sorry, we cannot cover a trip of this duration")};
		formObj.multitrip.value = "0";
		formObj.ShowSki.value = "1";
		formObj.ShowGolf.value = "1";
		getObj("DestinationAnnual").style.display="none";
		getObj("BusinessCover").style.display="none";
		getObj("GolfCover").style.display="none";
		getObj("DestinationSingle").style.display="block";
		if (formObj.STArea.value == "Eire / United Kingdom") {
			formObj.STArea.value = "Europe"	;
		}
		getObj("RetDate").style.display="block";
		getObj("StartDate").style.display="none";
		getObj("Adults18-45").style.display="block";
		getObj("ChildCover").style.display="block";
		formObj.Adults6669.value = "0";
		formObj.Adults6165.value = "0";
		formObj.Adults1860.value = "0";
		formObj.Adults7074.value = "0";
		formObj.Wintersports.checked = true;
		
}
}
// *********  MISC FUNCTIONS FOR ABOVE  ***************

function getObj(objId){
  return document.getElementById(objId);
}
function chkNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.-";

   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
   }


// ************** SUBMISSION CHECK *****************
function checkform(){ 
	NumAdults = 0;
	if(isNum(document.form1.Adults7074.value) == false) document.form1.Adults7074.value = 0;
	if(isNum(document.form1.Adults6669.value) == false) document.form1.Adults6669.value = 0;
	if(isNum(document.form1.Adults6165.value) == false) document.form1.Adults6165.value = 0;
	if(isNum(document.form1.Adults1860.value) == false) document.form1.Adults1860.value = 0;
	if(isNum(document.form1.Adults1845.value) == false) document.form1.Adults1845.value = 0;
	
	if (document.form1.multitrip.value==0) {
		NumAdults = parseInt(document.form1.Adults7074.value) + parseInt(document.form1.Adults6669.value)+ parseInt(document.form1.Adults6165.value) + parseInt(document.form1.Adults1860.value) + parseInt(document.form1.Adults1845.value);
		document.form1.NumAdults.value = NumAdults;
	}
	
	NumChildren = 0;
	if(document.form1.Infants.value == "") document.form1.Infants.value = 0;
	if(document.form1.Children.value == "") document.form1.Children.value = 0;

	Infants = document.form1.Infants.value
	Children = document.form1.Children.value
	NumChildren = parseInt(Children) + parseInt(Infants);
	document.form1.NumChildren.value = NumChildren;
	
	if ((document.form1.PolicyType.value == "Annual Multitrip")||(document.form1.PolicyType.value == "Annual Multitrip with Wintersports")||(document.form1.PolicyType.value == "Business")||(document.form1.PolicyType.value == "Motorcycle Multitrip")) {
		

}


	TotalAdults = document.form1.NumAdults.value ;
	TotalChildren = document.form1.NumChildren.value ;
	TotalInsured = parseInt(TotalAdults) + parseInt(TotalChildren);
	
	if ((document.form1.PolicyType.value == "Discovery Ski Season")||(document.form1.PolicyType.value == "Discovery Backpackers")){
	
		if ((TotalChildren>=1)&&(TotalAdults==0)){
				//alert("Child OK" );
				
		} else {
			
			  if (TotalAdults == 0 ) {
			   alert("Please enter at least one adult " );
			   return false;
			  }
		}
	}

	if (TotalInsured == 0 ) {
	   alert("Please enter at least one person " );
	   return false;
  }
 

  
  if (TotalInsured > 20 ) {
   alert("There is a limit of 20 insured persons");

   return false;
  }

if (document.form1.multitrip.value == "1"){
	if (document.form1.MTAdultAge.value == ""){
	   	alert("Please enter the age of the eldest traveller");
		document.form1.MTAdultAge.focus();
		document.form1.MTAdultAge.select();
   		return false;
	} 
	if (parseInt(document.form1.MTAdultAge.value) > parseInt(document.form1.MTAge.value) ){
		alert("Sorry, we are cannot cover this age on this particular policy." + document.form1.MTAge.value);
		document.form1.MTAdultAge.focus();
		document.form1.MTAdultAge.select();
		return false;
	} 
}

if (document.form1.multitrip.value == "0"){
		
		if (document.form1.PolicyType.value != "Discovery Backpackers" ){
			if (document.form1.PolicyType.value != "Discovery Ski Season" ){	
			if(document.form1.Motorcycle.checked == true){
				if(document.form1.NumDays.value >90) {
					alert("Sorry, we cannot offer Motorcycle Travel Insurance for more than 90 days");
					return false;
				}
			}
		}
		}
		
		if (document.form1.STArea.value == "Eire / United Kingdom") {	
			if(document.form1.NumDays.value >31) {
				alert("Sorry, we cannot cover a trip in the UK of more than 31 days");
				return false;
			}
		}
		if (document.form1.PolicyType.value == "Discovery Ski Season"){
			if(document.form1.NumDays.value >545) {
				alert("Sorry, we cannot cover a trip of more than 545 days");
				return false;
			}
		}
			
		
			
		if (document.form1.PolicyType.value == "Discovery Backpackers"){
			if(document.form1.NumDays.value >545) {
				alert("Sorry, we cannot cover a trip of more than 545 days");
				return false;
			}
		}
		
		if (document.form1.PolicyType.value == "Single Trip")
			if(document.form1.NumDays.value >365) {
				alert("Sorry, we cannot cover a trip of more than 365 days");
				return false;
			}
		} else{
			if(document.form1.NumDays.value >545) {
			alert("Sorry, we cannot cover a trip of more than 545 days");
			return false;
		}
}

if (document.form1.Resident.checked == false){
	alert ("Please tick the box to confirm you are a resident of the Republic of Ireland.");
	return false;
}
 return true; 
  // Submit Point
}


function ignoreSpaces(string) {
var temp = "";
string = '' + string;
splitstring = string.split(" ");
for(i = 0; i < splitstring.length; i++)
temp += splitstring[i];
return temp;
}

function ignoreDashes(string) {
var temp = "";
string = '' + string;
splitstring = string.split("-");
for(i = 0; i < splitstring.length; i++)
temp += splitstring[i];
return temp;
}

// Checks for card number inc. spaces:
//  General purpose check for numbers called by onBlur="validnumber(this)" :
function validnumber(field) {
var valid = "0123456789"
var ok = "yes";
var temp;
for (var i=0; i<field.value.length; i++) {
temp = "" + field.value.substring(i, i+1);
if (valid.indexOf(temp) == "-1") ok = "no";
}
if (ok == "no") {
alert("Invalid entry!  Please Enter Numbers Only");
field.focus();
field.select();
   }
}

function isNum(argvalue) {
argvalue = argvalue.toString();
if (argvalue.length == 0)
return false;

for (var n = 0; n < argvalue.length; n++)
if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) > "9")
return false;

return true;
}


// onFocus="this.blur()" 
//Disables editing of a field

function sendIt(){
window.open('','newWin','toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=no,resizable=no,width=500,height=300');
document.form1.submit();
}

function ignoreSpaces(string) {
var temp = "";
string = '' + string;
splitstring = string.split(" ");
for(i = 0; i < splitstring.length; i++)
temp += splitstring[i];
return temp;
}

function ignoreDashes(string) {
var temp = "";
string = '' + string;
splitstring = string.split("-");
for(i = 0; i < splitstring.length; i++)
temp += splitstring[i];
return temp;
}

// Checks for card number inc. spaces:
//  General purpose check for numbers called by onBlur="validnumber(this)" :
function validnumber(field) {
var valid = "0123456789"
var ok = "yes";
var temp;
for (var i=0; i<field.value.length; i++) {
temp = "" + field.value.substring(i, i+1);
if (valid.indexOf(temp) == "-1") ok = "no";
}
if (ok == "no") {
alert("This doesn't appear to be a number.");
field.focus();
field.select();
   }
}

function isNum(argvalue) {
argvalue = argvalue.toString();
if (argvalue.length == 0)
return false;

for (var n = 0; n < argvalue.length; n++)
if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) > "9")
return false;

return true;
}

function isValidDate(dateStr) {
// Checks for the following valid date formats:
// MM/DD/YY   MM/DD/YYYY   MM-DD-YY   MM-DD-YYYY

var datePat = /^(\d{1,2})(\/|-)(\d{1,2})\2(\d{4})$/; // requires 4 digit year

var matchArray = dateStr.match(datePat); // is the format ok?
if (matchArray == null) {
alert(dateStr + " Date is not in a valid format.")
return false;
}
month = matchArray[1]; // parse date into variables
day = matchArray[3];
year = matchArray[4];
if (month < 1 || month > 12) { // check month range
alert("Month must be between 1 and 12.");
return false;
}
if (day < 1 || day > 31) {
alert("Day must be between 1 and 31.");
return false;
}
if ((month==4 || month==6 || month==9 || month==11) && day==31) {
alert("Month "+month+" doesn't have 31 days!")
return false;
}
if (month == 2) { // check for february 29th
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day>29 || (day==29 && !isleap)) {
alert("February " + year + " doesn't have " + day + " days!");
return false;
   }
}
return true;
}

function isValidTime(timeStr) {
// Checks if time is in HH:MM:SS AM/PM format.
// The seconds and AM/PM are optional.

var timePat = /^(\d{1,2}):(\d{2})(:(\d{2}))?(\s?(AM|am|PM|pm))?$/;

var matchArray = timeStr.match(timePat);
if (matchArray == null) {
alert("Time is not in a valid format.");
return false;
}
hour = matchArray[1];
minute = matchArray[2];
second = matchArray[4];
ampm = matchArray[6];

if (second=="") { second = null; }
if (ampm=="") { ampm = null }

if (hour < 0  || hour > 23) {
alert("Hour must be between 1 and 12. (or 0 and 23 for military time)");
return false;
}
if (hour <= 12 && ampm == null) {
if (confirm("Please indicate which time format you are using.  OK = Standard Time, CANCEL = Military Time")) {
alert("You must specify AM or PM.");
return false;
   }
}
if  (hour > 12 && ampm != null) {
alert("You can't specify AM or PM for military time.");
return false;
}
if (minute < 0 || minute > 59) {
alert ("Minute must be between 0 and 59.");
return false;
}
if (second != null && (second < 0 || second > 59)) {
alert ("Second must be between 0 and 59.");
return false;
}
return true;
}

function dateDiff(dateform) {
date1 = new Date();
date2 = new Date();
diff  = new Date();
currentDate = new Date()
shortDate = new Date()
tmp1 = new Date()
tmp2 = new Date()

if (isValidDate(document.form1.FromDate.value)) { // Validates first date
date1temp = new Date(document.form1.FromDate.value);
date1.setTime(date1temp.getTime());

tmp1 = ((shortDate.getMonth()+1) + "/" + shortDate.getDate() + "/" + shortDate.getFullYear());
tmp2 = ((date1temp.getMonth()+1) + "/" + date1temp.getDate() + "/" + date1temp.getFullYear());

//if (tmp2 < tmp1) alert ("Start Date is before today");

}
//else return false; // otherwise exits

if (isValidDate(document.form1.ToDate.value)) { // Validates second date
date2temp = new Date(document.form1.ToDate.value);
date2.setTime(date2temp.getTime());
}

//if (date1temp > date2temp) alert ("Start Date is after End Date");
//else return false; // otherwise exits

// sets difference date to difference of first date and second date
diff.setTime(Math.abs(date1.getTime() - date2.getTime()));

timediff = diff.getTime();

weeks = Math.floor(timediff / (1000 * 60 * 60 * 24 * 7));
timediff -= weeks * (1000 * 60 * 60 * 24 * 7);

days = Math.floor(timediff / (1000 * 60 * 60 * 24));
timediff -= days * (1000 * 60 * 60 * 24);

hours = Math.floor(timediff / (1000 * 60 * 60));
timediff -= hours * (1000 * 60 * 60);

mins = Math.floor(timediff / (1000 * 60));
timediff -= mins * (1000 * 60);

secs = Math.floor(timediff / 1000);
timediff -= secs * 1000;

ActualDays = (weeks*7)+days;
document.form1.NumDays.value = ActualDays+1;
}

function timeDifference(startDate,endDate)
{

date1 = startDate;
date2 = endDate;

laterdate = date1.split("/");

laterM=laterdate[0];
laterD=laterdate[1];
laterY=laterdate[2];

earlierdate = date2.split("/");

earlierM=earlierdate[0];
earlierD=earlierdate[1];
earlierY=earlierdate[2];

var laterdate = new Date(laterY,laterM,laterD);
var earlierdate = new Date(earlierY,earlierM,earlierD);

var difference = laterdate.getTime() - earlierdate.getTime();

var daysDifference = Math.floor(difference/1000/60/60/24);
difference -= daysDifference*1000*60*60*24
var hoursDifference = Math.floor(difference/1000/60/60);
difference -= hoursDifference*1000*60*60
var minutesDifference = Math.floor(difference/1000/60);
difference -= minutesDifference*1000*60
var secondsDifference = Math.floor(difference/1000);

return daysDifference;

}