var fetched = new Date().getTime();
var finished
window.onload = function () {
    finished = new Date().getTime()
}
window.onbeforeunload = function () {
    var myWidth = 0, myHeight = 0;
    if( typeof( window.innerWidth ) == 'number' ) {
        //Non-IE
        myWidth = window.innerWidth;
        myHeight = window.innerHeight;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        //IE 6+ in 'standards compliant mode'
        myWidth = document.documentElement.clientWidth;
        myHeight = document.documentElement.clientHeight;
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        //IE 4 compatible
        myWidth = document.body.clientWidth;
        myHeight = document.body.clientHeight;
    }
    $.ajax({
        async: false,
        url: '/wl.cgi',
        type: 'POST',
        cache: false,
        global: false,
        data:{
            fetchId:wlId,
            windowSizeX:myWidth,
            windowSizeY:myHeight,
            resolutionX:screen.width,
            resolutionY:screen.height,
            fetched:fetched,
            finished:finished,
            forgot:new Date().getTime()
        }
    })
}