floatX=10;
floatY=20;
layerwidth=100;
layerheight=40;
halign="left";
valign="left";
delayspeed=3;
minTop = 118;


NS6=false;
IE4=(document.all);
if (!IE4) {NS6=(document.getElementById);}
NS4=(document.layers);

function adjust() {
	if ((NS4) || (NS6)) {
		if (lastX==-1 || delayspeed==0){
			lastX=window.pageXOffset + floatX;
			lastY=window.pageYOffset + floatY;
		}else{
			var dx=Math.abs(window.pageXOffset+floatX-lastX);
			var dy=Math.abs(window.pageYOffset+floatY-lastY);
			var d=Math.sqrt(dx*dx+dy*dy);
			var c=Math.round(d/10);
			if (window.pageXOffset+floatX>lastX) {lastX=lastX+delayspeed+c;}
			if (window.pageXOffset+floatX<lastX) {lastX=lastX-delayspeed-c;}
			if (window.pageYOffset+floatY>lastY) {lastY=lastY+delayspeed+c;}
			if (window.pageYOffset+floatY<lastY) {lastY=lastY-delayspeed-c;}
		}

		if (lastY < minTop) lastY = minTop;

		if (NS4){
			document.layers['floatlayer'].pageX = lastX;
			document.layers['floatlayer'].pageY = lastY;
		}
		if (NS6){
			document.getElementById('floatlayer').style.left=lastX;
			document.getElementById('floatlayer').style.top=lastY;
		}
	}else if (IE4){
		
		// r's hack to make invisible in IE
		//if (document.body.scrollTop > 50){
		//	document.all['floatlayer'].style.visibility = 'visible';
		//}else{
		//	document.all['floatlayer'].style.visibility = 'hidden';
		//}
		
		if (lastX==-1 || delayspeed==0){
			lastX=document.body.scrollLeft + floatX;
			lastY=document.body.scrollTop + floatY;
		}else{
			var dx=Math.abs(document.body.scrollLeft+floatX-lastX);
			var dy=Math.abs(document.body.scrollTop+floatY-lastY);
			var d=Math.sqrt(dx*dx+dy*dy);
			var c=Math.round(d/10);
			if (document.body.scrollLeft+floatX>lastX) {lastX=lastX+delayspeed+c;}
			if (document.body.scrollLeft+floatX<lastX) {lastX=lastX-delayspeed-c;}
			if (document.body.scrollTop+floatY>lastY) {lastY=lastY+delayspeed+c;}
			if (document.body.scrollTop+floatY<lastY) {lastY=lastY-delayspeed-c;}
		}

		if (lastY < minTop) lastY = minTop;

		document.all['floatlayer'].style.posLeft = lastX;
		document.all['floatlayer'].style.posTop = lastY;
	} 
	setTimeout('adjust()',50);
}

function define(){

	// get pos of logo_bottom.gif
	if (NS4 || NS6){
		xPos=eval('document.Bonus').x;
		yPos=eval('document.Bonus').y;
	}else if (IE4){
		xPos = eval('document.Bonus').offsetLeft;
		tempEl = eval('document.Bonus').offsetParent;
		while (tempEl != null) {
			xPos += tempEl.offsetLeft;
			tempEl = tempEl.offsetParent;
		}
	}
	ifloatX=xPos+576;
	ifloatY=floatY;

	if ((NS4) || (NS6)){ 
		if (halign=="left") {floatX=ifloatX};
		if (halign=="right") {floatX=window.innerWidth-ifloatX-layerwidth-20};
		if (halign=="center") {floatX=Math.round((window.innerWidth-20)/2)-Math.round(layerwidth/2)};
		if (valign=="top") {floatY=ifloatY};
		if (valign=="bottom") {floatY=window.innerHeight-ifloatY-layerheight};
		if (valign=="center") {floatY=Math.round((window.innerHeight-20)/2)-Math.round(layerheight/2)};
	}
	if (IE4){
		if (halign=="left") {floatX=ifloatX};
		if (halign=="right") {floatX=document.body.offsetWidth-ifloatX-layerwidth-20}
		if (halign=="center") {floatX=Math.round((document.body.offsetWidth-20)/2)-Math.round(layerwidth/2)}
		if (valign=="top") {floatY=ifloatY};
		if (valign=="bottom") {floatY=document.body.offsetHeight-ifloatY-layerheight}
		if (valign=="center") {floatY=Math.round((document.body.offsetHeight-20)/2)-Math.round(layerheight/2)}
	}
}