function over_out(img, ref)
{ 
document.images[img].src = ref.src; 
}


var but_on= new Image(); but_on.src="images/but0.gif";
var but_off= new Image(); but_off.src="images/but.gif";
var but_on2= new Image(); but_on2.src="images/but02.gif";
var but_off2= new Image(); but_off2.src="images/but2.gif";
var but_on3= new Image(); but_on3.src="images/but03.gif";
var but_off3= new Image(); but_off3.src="images/but3.gif";
var but_on4= new Image(); but_on4.src="images/but04.gif";
var but_off4= new Image(); but_off4.src="images/but4.gif";
var but_on5= new Image(); but_on5.src="images/but05.gif";
var but_off5= new Image(); but_off5.src="images/but5.gif";
var but_on6= new Image(); but_on6.src="images/but06.gif";
var but_off6= new Image(); but_off6.src="images/but6.gif";
var but_on7= new Image(); but_on7.src="images/but07.gif";
var but_off7= new Image(); but_off7.src="images/but7.gif";
var but_on8= new Image(); but_on8.src="images/but08.gif";
var but_off8= new Image(); but_off8.src="images/but8.gif";
var but_on9= new Image(); but_on9.src="images/but09.gif";
var but_off9= new Image(); but_off9.src="images/but9.gif";
var but_on10= new Image(); but_on10.src="images/but010.gif";
var but_off10= new Image(); but_off10.src="images/but10.gif";