function validroberts()
{
		if(document.form1.val_1.value==""){
			alert("Enter Your Name");
			document.form1.val_1.focus();
			return false;
		}
		if(document.form1.email.value=="")
			{
				alert ("Please Enter Your Email ID");
				document.form1.email.focus();
				return false;
			}
	  if(document.form1.email.value.indexOf("@")<=0 || document.form1.email.value.indexOf(".")<= 0 || document.form1.email.value.length<7)
	  {
	 		document.form1.email.value=trim(document.form1.email.value);
			alert("Please Enter Valid Email ID");
			document.form1.email.focus();
			return false;
	   }
      var str=document.form1.email.value;
	  for(var i=0;i<str.length;i++)
	  {
	 		var ch=str.substring(i,i+1);
			if((ch<"a"||ch>"z")&&(ch<"A"||ch>"Z")&&(ch<"0"||ch>"9")&&(ch!=".")&&(ch!="@")&&(ch!="_"))
			{
				document.form1.email.value=trim(document.form1.email.value);
				alert("Invalid Email ID");
			 	document.form1.email.focus();
			 	return false;
			 }
 		}
}
	function trim(val)
	{
	for(i=0;i<val.length;i++)
	{
		if(val.substring(i,i+1)!=" ")
		{
		val=val.substring(i,val.length);
		break;
		}
		if(i==val.length-1)
		val="";
		}
		len=val.length-1;
		for(i=len;i>-1;i--)
		{
		if(val.substring(i,i+1)!=" ")
		{
		val=val.substring(0,i+1);
		break;
		}
	}
	return val;
	}
function thankumsg()
{
document.getElementById('siteurl').value=document.location.href;
var myurl=document.location.href;
myurl=myurl.split("=");
	if(myurl[1]=="ok"){
	alert("Thanks for requesting our Newsletter. The latest issue will be automatically delivered to your email address you provided.");
	}else if(myurl[1]=="er"){
	alert("You have already registered for our eNewsletter.");
	}else if(myurl[1]=="invalidmail"){
	alert("Either your email is Invalid or domain doesn't exists.");
	}
}