/*preload
---------------------------------------------------*/
function preload(){
	var ploadurl= new Array(
	"images/search_button_on.gif",
	"images/user_login_button_on.gif",
	"images/sponcerlogin_button_on.gif");
var pload = new Array(ploadurl.length);
for(i = 0; i < pload; i++){
    pload[i] = new Image();
    pload[i].src = ploadurl[i];
}

}