if(visitviewer_uid == null) var visitviewer_uid = '';

var ADDR = 'http://www.visitviewer.com/';
var isIE = document.all ? true : false; 
if (!isIE) document.captureEvents(Event.MOUSEMOVE);

function getViewport()
{
 var width;
 var height;
 
 if (typeof window.innerWidth != 'undefined')
 {
      width = window.innerWidth;
      height = window.innerHeight;
 }
 else if (typeof document.documentElement != 'undefined'
     && typeof document.documentElement.clientWidth !=
     'undefined' && document.documentElement.clientWidth != 0)
 {
       width = document.documentElement.clientWidth;
       height = document.documentElement.clientHeight;
 }
 else
 {
       width = document.getElementsByTagName('body')[0].clientWidth;
       height = document.getElementsByTagName('body')[0].clientHeight;
 }
 
 return {width: width, height: height};
}

document.onclick = function(e) 
{
	var _scrollX = document.body.scrollLeft;
	var _scrollY = document.body.scrollTop;

	var _x; 
	var _y; 
	if (!isIE) { 
		_x = e.pageX; 
		_y = e.pageY; 
	} 
	if (isIE) { 
		_x = event.clientX + document.body.scrollLeft; 
		_y = event.clientY + document.body.scrollTop; 
	}
	
	var viewport = getViewport();
	_x = _x / viewport['width'] * 100;
	_y = _y / viewport['height'] * 100;
	
	if(visitviewer_uid == null || visitviewer_uid == '') return true;
	
	//var _title = encodeURIComponent(document.title);

    var xmlRequestObj = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
    xmlRequestObj.open("POST", ADDR + "click.php", true);
    xmlRequestObj.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    //var payload = "click=true&clickx=" + _x + "&clicky=" + _y + "&scrollx=" + _scrollX + "&scrolly=" + _scrollY + "&visitviewer_uid=" + visitviewer_uid + "&title=" + _title;
    var payload = "click=true&clickx=" + _x + "&clicky=" + _y + "&scrollx=" + _scrollX + "&scrolly=" + _scrollY + "&visitviewer_uid=" + visitviewer_uid;
    xmlRequestObj.send(payload);
	
	return true;
}