// JavaScript Document

function preloadImages() {
	if (document.images) {
   		 headlogoup       = new Image();
   		 headlogoup.src   = "Content/media/graphics/logos/susan.gif" ;
   		 headlogodown     = new Image() ;
   		 headlogodown.src = "Content/media/graphics/logos/susan_over.gif" ;
	}
}

window.addEventListener ? window.addEventListener("load",preloadImages,false) : window.attachEvent("onload",preloadImages);

function buttondown( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "down.src" );
    }
}
function buttonup ( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "up.src" );
    }
}