if(document.images){
oneon=new Image(30,130);
oneon.src="images/menu_1.gif";
oneoff=new Image(30,130);
oneoff.src="images/menu_1_F.gif";
twoon=new Image(30,130);
twoon.src="images/menu_2.gif";
twooff=new Image(30,130);
twooff.src="images/menu_2_F.gif";
threeon=new Image(30,130);
threeon.src="images/menu_3.gif";
threeoff=new Image(30,130);
threeoff.src="images/menu_3_F.gif";
fouron=new Image(30,130);
fouron.src="images/menu_4.gif";
fouroff=new Image(30,130);
fouroff.src="images/menu_4_F.gif";
fiveon=new Image(30,130);
fiveon.src="images/menu_5.gif";
fiveoff=new Image(30,130);
fiveoff.src="images/menu_5_F.gif";
sixon=new Image(30,130);
sixon.src="images/menu_6.gif";
sixoff=new Image(30,130);
sixoff.src="images/menu_6_F.gif";
sevenon=new Image(30,130);
sevenon.src="images/menu_7.gif";
sevenoff=new Image(30,130);
sevenoff.src="images/menu_7_F.gif";
eighton=new Image(20,130);
eighton.src="images/menu_8.gif";
eightoff=new Image(20,130);
eightoff.src="images/menu_8_F.gif";
}
function act(imgName){
if(document.images)
document[imgName].src=eval(imgName+'off.src');
}function inact(imgName){
if(document.images)
document[imgName].src=eval(imgName+'on.src');
}