var i=0;
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 false;
}

function valdContact() {
	var fullname = document.getElementById('fullname').value;
	var subject  = document.getElementById('subject').value;
	var email    = document.getElementById('email').value;
	var message  = document.getElementById('message').value;
	var country  = document.getElementById('country').value;
	var phoneno  = document.getElementById('phoneno').value;
	var address  = document.getElementById('address').value;

	if(fullname=="") {
		alert("Please enter fullname");	
		return false;
	}
	else if(subject=="") {
		alert("Please enter subject");	
		return false;
	}
	else if(email=="") {
		alert("Please enter your email address");
		return false;
	}
	else if(message=="") {
		alert("Please enter message");
		return false;
	}
	
	if(email!="") {
		return echeck(email);	
	}
}