var out="";
var limg="";

function off() {
  if (out=="") { return; }
  if (document.images) {
    document.images[limg].src=out;
    out="";
  }
}

function on(img,o1,o2) {
  if (document.images) {
  if (out != "") { off(); }
    document.images[img].src=o1;
    out=o2;
    limg=img;
  }
}






function popup(url,name,width,height) {
   helper = window.open(url,name,width,height,'resizable=0,toolbar=0,status=1,marginwidth=0,marginheight=0')
		}