function slideimagefrom(id,pos,step,rate) {
if (pos>0) step = -step;
if (document.layers) document.layers[id].position="relative";
else if (document.getElementById) document.getElementById(id).style.position="relative";
else if (document.all) document.all[id].style.position="relative";
else return;
setTimeout("slideimage(\""+id+"\","+pos+","+step+","+rate+")",rate);
}
	
function slideimage(id,pos,step,rate) {
if (document.layers) document.layers[id].left=pos+"px";
else if (document.getElementById) document.getElementById(id).style.left=pos+"px";
else if (document.all) document.all[id].style.left=pos+"px";
else return;
if ((step>0 && pos>=0) || (step<0 && pos <=0)) return ;
pos+=step ;
setTimeout("slideimage(\""+id+"\","+pos+","+step+","+rate+")",rate);
}