function Ypick(){

   if (!document.all)
   return
	screenwidth = promobanner.offsetWidth;
	screenheight = promobanner.offsetHeight;
	xincrement = (screenwidth/10); 
	ystart = Math.round(Math.random()*(screenheight-92));
	yend = Math.round(Math.random()*(screenheight-92));
	document.all.ball.style.top=ystart;
	document.all.ball.style.left=-100;
	if (ystart > yend){
		ydiff = (ystart-yend);
		yincrement = (ydiff/xincrement);
		//Moveneg();
	}
	else {
		ydiff = (yend-ystart);
		yincrement = (ydiff/xincrement);
		//Movepos();
	}
}	
function Moveneg(){
	if (screenwidth > parseInt(document.all.ball.style.left)) {
        with (document.all.ball) {
		style.left = parseInt(style.pixelLeft + 10);
		style.top = parseInt(style.pixelTop - yincrement);
		}
        setTimeout('Moveneg()',20);
    }
	else {
		with (document.all.ball) {
		style.left = parseInt(style.pixelLeft - screenwidth);
		style.top = parseInt(style.pixelTop - yend);
		}
		Ypick();
	}
}
function Movepos(){
	if (screenwidth > parseInt(document.all.ball.style.left)) {
        with (document.all.ball) {
		style.left = parseInt(style.pixelLeft + 10);
		style.top = parseInt(style.pixelTop + yincrement);
		}
        setTimeout('Movepos()',20);
    }
	else {
		with (document.all.ball) {
		style.left = parseInt(style.pixelLeft - screenwidth);
		style.top = parseInt(style.pixelTop - yend);
		}
		Ypick();
	}
}