function isBlank(val){
	if(val==null){return true;}
	for(var i=0;i<val.length;i++) {
		if ((val.charAt(i)!=' ')&&(val.charAt(i)!="\t")&&(val.charAt(i)!="\n")&&(val.charAt(i)!="\r")){return false;}
		}
	return true;
	}
function setNullIfBlank(obj){if(isBlank(obj.value)){obj.value="";}}

function valCharNumb(strValue) 
    {
		var blnValid=true;
		var strChars= "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789'-";
		var strCheck;
		var i, j, ch;
			if (strValue.length==0) {
				blnValid=false;
			}
			strCheck = strValue
			for (i = 0;  i < strCheck.length;  i++)
			{
			    ch = strCheck.charAt(i);
			    for (j = 0;  j < strChars.length;  j++)
					if (ch == strChars.charAt(j))
					{	break;
					}
					if (j == strChars.length)
					{
						blnValid = false;
						break;
					}
			}
		  return blnValid;
    }



function Validate(theForm){

if (theForm.FirstName.value == ""){
	alert("Please enter your First Name");
	theForm.FirstName.focus();
	return (false);
	}
   

if (!valCharNumb(theForm.FirstName.value)){
alert("First Name: Please enter valid Characters.");
theForm.FirstName.focus();
	return (false);
	}
	
	if (theForm.LastName.value == ""){
		alert("Please enter your Last Name");
		//theForm.LastName.className = "txtval";
		theForm.LastName.focus();
		return (false);
	}
	
	if (!valCharNumb(theForm.LastName.value)){
		alert("Last Name: Please enter valid Characters.");
		theForm.LastName.focus();
		return (false);
	}
	
  	if (theForm.HomeCountry.value == "0")	{
		alert("Please select a Country");
		theForm.HomeCountry.focus();
		return (false);
	}
	
	if (!PhoneNumber(theForm.Phone.value)){   
		alert("Please enter Valid Phone Number");
		theForm.Phone.focus();
		theForm.Phone.value = "";
		return (false);
	}
	
	var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
	if (!checkmail(emailfilter, theForm.Email.value))
	{
		alert("Please Enter Valid Email Address \n i.e \"anyuser@yourdomain.com\" "); 
		theForm.Email.focus();
		return (false);
	}	
	
 }
  
function PhoneNumber(strValue)  
{
	var blnValid=true;
	var strChars= "0123456789-+(). ";
	var strCheck;
	var i, j, ch;
		if (strValue.length==0) {
			blnValid=false;
			
		}
		strCheck = strValue;
		for (i = 0;  i < strCheck.length;  i++)
		{
			ch = strCheck.charAt(i);
			for (j = 0;  j < strChars.length;  j++)
				if (ch == strChars.charAt(j))
				{	break;
				}
				if (j == strChars.length)
				{
					blnValid = false;
					break;
				}
		}
	  return blnValid;
}
	
function checkmail(expression, email){
	var patt1= new RegExp(expression);
	return patt1.test(email);
}