var slider_timer = null;
var animpaneheight = 0;
var animoffset = -1;
var curpos = 0;
var slider_id = '#scrollerDiv';
var timer_length = 20;

function slider_onload() {
	animpaneheight = jQuery('#scrollerDiv table').height();
	animpaneheight = animpaneheight + animpaneheight;

	slider_timer = setInterval("anim()", timer_length);
}
function slide_onunload() {
	if(slider_timer) 
		clearInterval(slider_timer);
}

function anim() {
	var elem = returnObjById(slider_id);

	if(curpos + animoffset <= -animpaneheight/2) {
		jQuery(slider_id)[0].style.top = (curpos = 0) + 'px';
	} else {
		jQuery(slider_id)[0].style.top = (curpos += animoffset) + 'px';
	}
}
$j(document).ready(function() {
	if(jQuery(slider_id).length != 0) {
		slider_onload();
	}
});