// JavaScript Document
function formvalidate()
{
var el = document.getElementById("validName");
el.style.display="none";
var name=document.support.name.value;
if(name.length==0)
{
document.support.name.focus();
el.style.display="block";
return false;
}

var el = document.getElementById("validdata");
el.style.display="none";
var name=document.support.data.value;
if(name.length==0)
{
document.support.data.focus();
el.style.display="block";
return false;
}


var emailID=document.support.email.value;
var el = document.getElementById("validemail");
el.style.display="none";

if ((emailID == null)||(emailID ==""))
{
  document.support.email.focus();
  el.style.display="block";
  return false;
}
if (echeck(emailID)==false)
{
		document.support.email.focus();
		el.style.display="block";
		return false;
}


return true;
}

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){
		   return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false;
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false;
		 }
 		 return true;
	}