// Create HTTP Request Object
function createHttp(url) {
	if (window.XMLHttpRequest) {
		// code for IE7+, Firefox, Chrome, Opera, Safari
		xmlhttp = new XMLHttpRequest();
		xmlhttp.open("GET", url, true);
		xmlhttp.send(null);
	} else {
		// code for IE6, IE5
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		xmlhttp.open("GET", url, true);
		xmlhttp.send();
	}
	return xmlhttp;
}

function check_emailExists(email, oldEmail) {
	var url = "/actions/ajax.php?call=checkEmail&e=" + email;
	var xmlhttp = createHttp(url);
	
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			response = xmlhttp.responseText;
			if (response == '1' && email != oldEmail) {
				document.getElementById('email_taken').style.visibility = 'visible';
				document.getElementById('submit').disabled = true;
			} else {
				document.getElementById('email_taken').style.visibility = 'hidden';
				document.getElementById('submit').disabled = false;
			}
		}
	}
}


function  countClicks(id){

	var userBrowser = navigator.appName;
	var url = "/actions/ajax.php?call=countClick&imgId="+id+"&userB="+userBrowser;

	var xmlhttp = createHttp(url);
	
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			response = xmlhttp.responseText;
			if (response != '') {
				
				window.location.href = response;
			} 
		}
	}
	
	
	}