function ChangeMenuPic(obj){
	var img_src=obj.src;
	var temp_src=img_src.replace("-1.gif","");
	if(img_src!=temp_src){
		obj.src=temp_src+"-2.gif";
	}else{
		obj.src=img_src.replace("-2.gif","")+"-1.gif";
	}
}
function ChangeMenuFile(objname){
ChangeMenuPic($(objname));
$(objname).onmouseover=null;
$(objname).onmouseout=null;
}