/**
ClickHeat : Suivi et analyse des clics / Tracking and clicks analysis

@author Yvan Taviaud - LabsMedia - www.labsmedia.com/clickheat/
@since 27/10/2006
@update 01/03/2007 - Yvan Taviaud : correctif Firefox (Károly Marton)
@update 23/03/2007 - Yvan Taviaud : protection de 2 secondes entre chaque clic, et X clics maximum par page
@update 18/05/2007 - Yvan Taviaud : suppression de clickHeatPage, ajout de clickHeatGroup et clickHeatSite
@update 27/08/2007 - Yvan Taviaud : changement du système de débug
@update 28/09/2007 - Yvan Taviaud : ajout de quelques messages de débug

Tested under :
Windows 2000 - IE 6.0
Linux - Firefox 2.0.0.1, Konqueror 3.5.5, IE 7
*/

/** Main function */
function catchClickHeat(e)
{
	/** Use a try{} to avoid showing errors to users */
	try
	{

		/** Look for the real event */
		if (e == undefined)
		{
			//alert(template_id);
            e = window.event;
			c = e.button;
			element = e.srcElement;
		}
		else
		{
			c = e.which;
			element = null;
		}
		if (c == 0)
		{
			
			return true;
		}

		var x = e.clientX;
		var y = e.clientY;
		var w = clickHeatDocument.clientWidth != undefined ? clickHeatDocument.clientWidth : window.innerWidth;
		var h = clickHeatDocument.clientHeight != undefined ? clickHeatDocument.clientHeight : window.innerHeight;
		var scrollx = window.pageXOffset == undefined ? clickHeatDocument.scrollLeft : window.pageXOffset;
		var scrolly = window.pageYOffset == undefined ? clickHeatDocument.scrollTop : window.pageYOffset;
		/** Is the click in the viewing area? Not on scrollbars. Still the problem exists for FF on the horizontal scrollbar */
		if (x > w || y > h)
		{
			
			return true;
		}
		/** Check if last click was at least 1 second ago */
		clickTime = new Date();
		if (clickTime.getTime() - clickHeatTime < 1000)
		{
			
			return true;
		}
		clickHeatTime = clickTime.getTime();
		if (clickHeatQuota > 0)
		{
			clickHeatQuota = clickHeatQuota - 1;
		}
        
		params = '/' + template_id + '/' + campaign_id + '/' + (x + scrollx) + '/' + (y + scrolly);
		
		/** Local request? Try an ajax call */
		var sent = false;
		if (clickHeatServer.substring(0, 4) != 'http')
		{
			var xmlhttp = false;
			try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
			catch (e)
			{
				try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");	}
				catch (oc) { xmlhttp = null; }
			}
			if (!xmlhttp && typeof XMLHttpRequest != undefined) xmlhttp = new XMLHttpRequest();
			if (xmlhttp)
			{
                //alert("xmlhttp");
				xmlhttp.open('POST', clickHeatServer+params , true);
				xmlhttp.setRequestHeader('Connection', 'close');
				xmlhttp.send(null);
				
			}
		}

	}
	catch(e)
	{
		
	}
	return true;
}

var clickHeatGroup = '';
var clickHeatSite = '';
var clickHeatServer = '';
var clickHeatLastIframe = -1;
var clickHeatTime = 0;
var clickHeatQuota = -1;
var clickHeatBrowser = '';
var clickHeatDocument = '';
var clickHeatDebug = (window.location.href.search(/debugclickheat/) != -1);
function initClickHeat()
{
	/** Debug Window */
	if (clickHeatDebug == true)
	{
		document.body.innerHTML = document.body.innerHTML + '<div id="clickHeatDebuggerDiv" style="padding:5px; display:none; position:absolute; top:10px; left:10px; border:1px solid #888; background-color:#eee; z-index:99;"><strong>ClickHeat debug: <a href="#" onmouseover="document.getElementById(\'clickHeatDebuggerDiv\').style.display = \'none\'; return false">Rollover to close</a></strong><br /><br /><span id="clickHeatDebuggerSpan"></span></div>';
	}
 
	/** If current website has the same domain as the script, we remove the domain so that the call is made using Ajax */
	domain = window.location.href.match(/http:\/\/[^\/]+\//);
	//alert(domain);
    //alert(clickHeatServer);
	if (domain != null && clickHeatServer.substring(0, domain[0].length) == domain[0])
	{
		clickHeatServer = clickHeatServer.substring(domain[0].length - 1, clickHeatServer.length)
	}

    document.onmousedown = catchClickHeat;

}
/**
* Shows a debug string
**/