// JavaScript Document

function validateContact(){
	var me =document.form1;
 
	  if(document.getElementById('Name').value==""){
		  alert('Please enter required field. "Name"');
		  document.getElementById('Name').focus();
		  return false;
		  }

	  if(document.getElementById('Email').value==""){
		  alert('Please enter  a valid field. " Email *"');
		  document.getElementById('Email').focus();
		  return false;
		  }

	  if(document.getElementById('CompanyName').value==""){
		  alert('Please enter  a valid field. " Company Name *"');
		  document.getElementById('CompanyName').focus();
		  return false;
	  }
	
	  if(document.getElementById('TelNo').value==""){
		  alert('Please enter  a valid field. " Tel No *"');
		  document.getElementById('TelNo').focus();
		  return false;
	
	  }
	
	  if(document.getElementById('Message').value==""){
		  alert('Please enter  a valid field. " Message *"');
		  document.getElementById('Message').focus();
		  return false;
	
	  }

 if (echeck(document.getElementById('Email').value)==false)
    {
	document.getElementById('Email').value=""
	document.getElementById('Email').focus();
 	alert('Invalid E-mail ID"');
    return false
   }

}
	
	
	
	
	
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
	}