// JavaScript Document

function validation()
{
	if(document.getElementById('Name').value=="")
	{
		alert('Please enter the Name');
		document.getElementById('Name').focus();
		return false;
	}
// 	if(document.getElementById('Organization').value=="")
// 	{
// 		alert('Please enter the Organization Name');
// 		document.getElementById('Organization').focus();
// 		return false;
// 	}
	if(document.getElementById('Telephone').value=="")
	{
		alert('Please enter the Phone number');
		document.getElementById('Telephone').focus();
		return false;
	}

	if(isNaN(document.getElementById('Telephone').value))
	{
		alert('Please enter numeric value only');
		document.getElementById('Telephone').focus();
		return false;
	}

	if(document.getElementById('Email').value=="")
	{
		alert('Please enter the Email Address');
		document.getElementById('Email').focus();
		return false;
	}
	if(!echeck(document.getElementById('Email').value))
	{
		return false;
	}
	if(document.getElementById('security_code').value=="")
	{
		alert('Please enter the Security Code');
		document.getElementById('security_code').focus();
		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){
		alert("Invalid E-mail ID")
		return false
		}
		
		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		alert("Invalid E-mail ID")
		return false
		}
		
		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert("Invalid E-mail ID")
		return false
		}
		
		if (str.indexOf(at,(lat+1))!=-1){
		alert("Invalid E-mail ID")
		return false
		}
		
		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("Invalid E-mail ID")
		return false
		}
		
		if (str.indexOf(dot,(lat+2))==-1){
		alert("Invalid E-mail ID")
		return false
		}
		
		if (str.indexOf(" ")!=-1){
		alert("Invalid E-mail ID")
		return false
		}
		
		return true					
		}