function Lvl_openWin(u,n,w,h,l,t,c,f,x) { //v2.0 4LevelWebs
    var ww=((screen.width-w)/2);if(c==1){l=ww;t=(screen.height-h)/2;}if(c==2){l=ww}
	f+=',top='+t+',left='+l;LvlWin = window.open(u,n,f);LvlWin.focus();
	document.MM_returnValue=false;
}

function showCenter(point)
{
    var div = document.createElement("div");
    div.style.background = "#dedede";
    div.style.position = "absolute";
    div.style.top = point.y + "px";
    div.style.left = point.x + "px";    
    div.style.width = "100px";
    div.style.height = "100px";
    document.body.appendChild(div);
}