function swapImage(imgN,imgU){ 
			if(document.images)document.images[imgN].src=imgU; 
			}

		var timer_id;
		function scroll_iframe(frm,inc,dir) {
		  if (timer_id) clearTimeout(timer_id);
		  if (window.frames[frm]) {
		    if (dir == "v") window.frames[frm].scrollBy(0, inc);
		    else window.frames[frm].scrollBy(inc, 0);
		    timer_id = setTimeout("scroll_iframe('" + frm + "'," + inc + ",'" + dir + "')", 20);
		  }
		}
	
		function stopScroll() { if (timer_id) clearTimeout(timer_id); }