function as_click () {
    urchinTracker ('/asclick');
}
// incredibly funky onload add-event scripting, for all browsers
         if(typeof window.addEventListener != 'undefined')
         {
            //.. gecko, safari, konqueror and standard
            window.addEventListener('load', adsense_init, false);
         }
         else if(typeof document.addEventListener != 'undefined')
         {
            //.. opera 7
            document.addEventListener('load', adsense_init, false);
         }
         else if(typeof window.attachEvent != 'undefined')
         {
            //.. win/ie
            window.attachEvent('onload', adsense_init);
         }
         //** remove this condition to degrade older browsers
         else
         {
            //.. mac/ie5 and anything else that gets this far
            //if there's an existing onload function
            if(typeof window.onload == 'function')
            {
                //store it
                var existing = onload;
                //add new onload handler
                window.onload = function()
                {
                    //call existing onload function
                    existing();
                    //call adsense_init onload function
                    adsense_init();
                };
            }
            else
            {
                //setup onload function
                window.onload = adsense_init;
            }
         }
function adsense_init () {
    if (document.all) {  //ie
        var el = document.getElementsByTagName("iframe");
        for(var i = 0; i < el.length; i++) {
            if(el[i].src.indexOf('googlesyndication.com') > -1) {
                el[i].onfocus =  as_click;
            }
        }
    } else {   // firefox
        window.addEventListener('beforeunload', doPageExit, false);
        window.addEventListener('mousemove', getMouse, true);
    }
}
//for firefox
var px;
var py;
function getMouse(e) {
    px=e.pageX;
    py=e.clientY;
}
function findY(obj) {
    var y = 0;
    while (obj) {
        y += obj.offsetTop;
        obj = obj.offsetParent;
    }
    return(y);
}
function findX(obj) {
    var x = 0;
    while (obj) {
        x += obj.offsetLeft;
        obj = obj.offsetParent;
    }
    return(x);
}
function doPageExit(e) {
    ad = document.getElementsByTagName("iframe");
    for (i=0; i<ad.length; i++)="" {="" var="" adleft="findX(ad[i]);" adtop="findY(ad[i]);" inframex="(px"> (adLeft - 10) && px < (parseInt(adLeft) + parseInt(ad[i].width) + 15));
        var inFrameY = (py > (adTop - 10) && py < (parseInt(adTop) + parseInt(ad[i].height) + 10));
 
        if (inFrameY && inFrameX) {
            urchinTracker('/asclick');
        }
    }
}
//end for firefox
</ad.length;>