/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
var browserType;

if (document.layers) {browserType = "nn4"}
if (document.all) {browserType = "ie"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) {
   browserType= "gecko"
}

function hide() {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("realtooltip")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("realtooltip")');
  else
     document.poppedLayer =   
        eval('document.layers["realtooltip"]');
  document.poppedLayer.style.visibility = "hidden";
}

function hide2(){
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("realtooltip2")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("realtooltip2")');
  else
     document.poppedLayer =   
        eval('document.layers["realtooltip2"]');
  document.poppedLayer.style.visibility = "hidden";
}

function show() {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("realtooltip")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("realtooltip")');
  else
     document.poppedLayer = 
         eval('document.layers["realtooltip"]');
  document.poppedLayer.style.visibility = "visible";
}

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					
	}

function ValidateForm(){
	var emailID=document.contactform.email
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	show();
	hide2();
	return true
	
 }