var home_over = new Image();
home_over.src = "img/button_home_over.gif";
var food_over = new Image();
food_over.src = "img/button_food_over.gif";
var workwear_over = new Image();
workwear_over.src = "img/button_workwear_over.gif";
var direct_over = new Image();
direct_over.src = "img/button_direct_over.gif";
var mats_over = new Image();
mats_over.src = "img/button_mats_over.gif";
var contact_over = new Image();
contact_over.src = "img/button_contact_over.gif";
var env_over = new Image();
env_over.src = "img/button_env_over.gif";

function swap(imgName,newSrc)
{
	document.images[imgName].src = newSrc;
}