menubase = new Image; menubase.src = "houseback.jpg";
menuH = new Image; menuH.src = "houseback_home.jpg";
menuP = new Image; menuP.src = "houseback_products.jpg";
menuG = new Image; menuG.src = "houseback_gallery.jpg";
menuA = new Image; menuA.src = "houseback_about.jpg";
menuC = new Image; menuC.src = "houseback_contact.jpg";

function MouseOverRoutine(ButtonName)
{
switch(ButtonName){
    case "ButtonhomeH":
         document.houseback.src = menuH.src;
		 break;
    case "ButtonhomeP":
         document.houseback.src = menuP.src;
		 break;
    case "ButtonhomeG":
         document.houseback.src = menuG.src;
		 break;
    case "ButtonhomeA":
         document.houseback.src = menuA.src;
		 break;
    case "ButtonhomeC":
         document.houseback.src = menuC.src;
		 break;
	}
}

function MouseOutRoutine(ButtonName)
{ 
{document.houseback.src = menubase.src;}
}