function verScroll(dir, spd, hgt, loop) {
    loop = true;
    direction = "up";
    speed = 10;
    scrolltimer = null;
    height = 0;

    if (document.layers) {
        var page = eval(document.contentLayer);
    } else {
        if (document.getElementById) {
            var page= eval("document.getElementById('contentLayer').style");
        } else {
            if (document.all) {
		var page = eval(document.all.contentLayer.style);
            }
        }
    }

    direction = dir;
    speed = parseInt(spd);
    var y_pos = parseInt(page.top);
    //height_rem = 0 - height;
    height = 0 - parseInt(hgt);
 	
    if (loop == true) {
	if (direction == "dn" && y_pos > height) {
	    page.top = (y_pos - (speed));
	} else {
	    //if (direction == "up" && y_pos < 10) {
	    if (direction == "up" && y_pos < 0) {
		page.top = (y_pos + (speed));
	    } else {
		if (direction == "top") {
		    page.top = 10;
        	}
   	    }
	}
        scrolltimer = setTimeout("verScroll(direction,speed,height)", 1);
   }
}


function stopScroll() {
    loop = false;
    clearTimeout(scrolltimer);
}