$(document).ready(function() {

	// preload img
	$.fn.preload = function() {
	    this.each(function(){
	        $('<img/>')[0].src = this;
	    });
	}

	$([
		// business page btn
//		'business/img/btn_biz_edms_contact.gif', 'business/img/btn_biz_it_contact.gif', 'business/img/btn_biz_newbiz_contact.gif', 'business/img/btn_biz_sc_contact.gif', 'business/img/img_side_menu.gif', 'business/img/biztop4business.gif'
	
	]).preload();

});