function PreloadImages()
{
	var arImages=new Array();
	
	function Preload() {
	 var temp = Preload.arguments; 
	 for(x=0; x < temp.length; x++) {
	  arImages[x]=new Image();
	  arImages[x].src=Preload.arguments[x];
	 }
	}
}

function Form_Validator(theForm)
{

var digits = "0123456789";
var phoneNumberDelimiters = "()- ";
var validWorldPhoneChars = phoneNumberDelimiters + "+";
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
       if (((c < "0") || (c > "9"))) return(false);
    }
    // All characters are numbers.
    return(true);
}

function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return(returnString);
}

function checkInternationalPhone(strPhone){
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return(isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Please Enter a Valid Email Address.")
		   return(false);
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please Enter a Valid Email Address.")
		   return(false);
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please Enter a Valid Email Address.")
		    return(false);
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please Enter a Valid Email Address.")
		    return(false);
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please Enter a Valid Email Address.")
		    return(false);
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Please Enter a Valid Email Address.")
		    return(false);
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Please Enter a Valid Email Address.")
		    return(false);
		 }

 		 return(true);
}


  if (theForm.name.value == "")
  {
     alert("Please Enter Your Name.");
     theForm.name.focus();
     return(false);
  }
  else if (theForm.organisation.value == "")
  {
     alert("Please Enter Your Organisation Name.");
     theForm.organisation.focus();
     return(false);
  }
  
  var emailID=theForm.email;
	if ((emailID.value==null)||(emailID.value=="")) {
	  alert("Please Enter Your Email Address.");
	  theForm.email.focus();
	  return(false);
	}
	
	if (echeck(emailID.value)==false) {
	  emailID.value="";
	  theForm.email.focus();
	 return(false);
	}
  
  if (theForm.telephone.value == "")
  {
     alert("Please Enter Your Telephone Number");
     theForm.telephone.focus();
     return(false);
  }
	var PhoneNo = theForm.telephone;
	if (checkInternationalPhone(PhoneNo.value)==false)
	{
	 alert("Please Enter a Valid Telephone Number");
	 theForm.telephone.focus();
	 return(false);
	}

  return(true);
}