jQuery.preloadImages = function(){
	for(var i = 0; i<arguments.length; i++){
		jQuery("<img>").attr("src", arguments[i]);
	}
};
// Usage
$.preloadImages("../img/logo.gif","../img/nav_ci.gif", "../img/navi_news.gif", "../img/navi_outline.gif","../img/navi_access.gif","../img/navi_pagetop.gif");