if (mtDropDown.isSupported()) 
		{
			var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);

var	menu10	=	ms.addMenu(document.getElementById("mainmenu10"));
menu10.addItem("90度素描",	"?action=text|90art|2416|cn|4250|3797","_blank");
menu10.addItem("90度色彩",	"?action=text|90art|2416|cn|4251|3797","_blank");
menu10.addItem("90度速写",	"?action=text|90art|2416|cn|4252|3797","_blank");
menu10.addItem("90度创作",	"?action=text|90art|2416|cn|4253|3797","_blank");
menu10.addItem("2010作品",	"?action=text|90art|2416|cn|4579|3797","_blank");

			mtDropDown.renderAll();
		}
		//��ʼ�˵�
		window.onload = init;