function linkOutOver(obj,out,over)
{
	obj.onmouseover=function(){var btn=this.getElementsByTagName("img").item(0);btn.setAttribute("src",over);}
	obj.onmouseout=function(){var btn=this.getElementsByTagName("img").item(0);btn.setAttribute("src",out);}
}
function switchOffHovers(obj)
{
	obj.onmouseover=function(){}
	obj.onmouseout=function(){} 
}
function setLinkImage(obj,src)
{
	var btn=obj.getElementsByTagName("img").item(0);
	btn.setAttribute("src",src);
}
function setImageById(id,src,alt)
{
	if(!document.getElementById(id)){return false;}
	var img=document.getElementById(id);
	img.setAttribute("src",src);
	img.setAttribute("alt",alt);
}