jQuery.preimg = function()
{
	var length = arguments.length;
	for(var i = 0; i<length; i++)
	{
		jQuery("<img>").attr("src", arguments[i]);
	}
};
jQuery.preimg("/img/header.jpg","/img/back.jpg","/img/menu_back.jpg","/img/menutab.jpg","/img/welcome.jpg","/img/manage.jpg","/img/account.jpg","/img/logout.jpg","/img/side_back.jpg","/img/tab.jpg","/img/bar.jpg");