if (document.images) {

//Leftbar images  
  pic1 = new Image();
  pic1.src = "images/arrow_up.gif";
  pic12 = new Image();
  pic12.src = "images/arrow_up_on.gif";  
  pic2 = new Image();
  pic2.src = "images/arrow_down.gif";
  pic22 = new Image();
  pic22.src = "images/arrow_down_on.gif";  
}
function OnImage(name) {
	if (document.images) {
		fullname = eval(name + "2");
		document[name].src = fullname.src;
	}
}
function OffImage(name) {
  if (document.images) {
    fullname = eval(name);
	if (fullname.complete) {
      document[name].src = fullname.src;
	}
  }
}