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					
	}


function ValidateForm(){

	var FNameCheck=document.newsletter.fname
	if((FNameCheck.value==null)||(FNameCheck.value=="")){
		alert("Please enter your First Name")
		FNameCheck.focus()
		return false
	}
	var SurnameCheck=document.newsletter.surname
	if((SurnameCheck.value==null)||(SurnameCheck.value=="")){
		alert("Please enter your Surname")
		SurnameCheck.focus()
		return false
	}
	var EmailCheck=document.newsletter.email
	if((EmailCheck.value==null)||(EmailCheck.value=="")){
		alert("Please enter a valid Email address")
		EmailCheck.focus()
		return false
	}
	if (echeck(EmailCheck.value)==false){
		EmailCheck.value=""
		EmailCheck.focus()
		return false
	}
	return true

 }