/**
function sample () 
{
	var $url    = 'sample.php';
	var $pars   = 'x=x';
	var myAjax = new Ajax.Request( $url, {method: 'get', parameters: $pars, onComplete: sample} );
}
**/

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 email address!!!")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid email address!!!")
		   return false
		}
		

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid email address!!!")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid email address!!!")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid email address!!!")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid email address!!!")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid email address!!!")
		    return false
		 }

 		 return true					
	}

function ValidateForm(){
	var emailID = document.contactus.email
	var subject = document.contactus.subject
	var message = document.contactus.msg
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please enter your email address...")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.focus()
		return false
	}
	
	if ((subject.value==null)||(subject.value=="")){
		alert("Please enter subject...")
		subject.focus()
		return false
	}
	
	if ((message.value==null)||(message.value=="")){
		alert("Please enter message...")
		message.focus()
		return false
	}
	return true
 }