im=new Image
var loadsrc="images/zippers_a.gif"
im.src=loadsrc
var tmpImg
function mover(o){
	O=document.getElementById(o)
	tmpImg=O.src
	O.src=O.lowsrc
}
function mout(o){
	O=document.getElementById(o)
	O.src=tmpImg
	tmpImg=''
}