var bWidth,bHeight,offsetX,offsetY
var layerRef="null",layerStyleRef="null",styleSwitch="null";
var dx=98,dy=120,layername='controlmark';

function init(){
	if (navigator.appName == "Netscape") {
		layerStyleRef="layer.";
		layerRef="document.layers";
		styleSwitch="";
		pxSwitch="";

		bHeight=window.innerHeight;
		bWidth= window.innerWidth;
		offsetX= "window.pageXOffset";
		offsetY=" window.pageYOffset";
	}else{
		layerStyleRef="layer.style.";
		layerRef="document.all";
		styleSwitch=".style";

		bHeight=document.body.clientHeight;
  		bWidth= document.body.clientWidth;
  		offsetX= "document.body.scrollLeft";
  		offsetY= "document.body.scrollTop";
	}
}

function moveLayerto(layerName,top,left){
	eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.top=top');
	eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.left=left');
}

var layer_y=0,layer_dy=0;

function alwaysONdown(){
	var newY;
	eval('newY='+offsetY);
	eval('newY+='+bHeight);

	layer_dy = newY - layer_y;
	if(layer_y != newY)	layer_y += (layer_dy/25)

	moveLayerto(layername,layer_y-dy,bWidth-dx);
	setInterval('alwaysONdown()');
}