function showbox(id,width,height)
  {
	   $("."+id).fancybox({
		  'width': width,
		  'height': height,
		  'autoScale': false,
		  'transitionIn': 'none',
		  'transitionOut': 'none',
		  'type': 'iframe',
		  'opacity'		: false,
		  'overlayShow'	: true,
		  'transitionIn'	: 'elastic',
		  'transitionOut'	: 'none'
	  });
}
/*ȡcookies*/
var getCookie = function (c_name) {
    if (document.cookie.length > 0) {
        c_start = document.cookie.indexOf(c_name + "=");
        if (c_start != -1) {
            c_start = c_start + c_name.length + 1;
            c_end = document.cookie.indexOf(";", c_start);
            if (c_end == -1) c_end = document.cookie.length;
            return decodeURIComponent(document.cookie.substring(c_start, c_end));
        }
    }
    return "";
}