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		var ms = new mtDropDownSet(mtDropDown.direction.down, -12, 6, mtDropDown.reference.bottomLeft);

		var menu1 = ms.addMenu(document.getElementById("mtDropDown_menu1"));
		menu1.addItem("Introduction", "introduction.asp");
		menu1.addItem("Corporate Video", "../ANNEN/20080422175915.htm");
		menu1.addItem("Market", "market.asp");

		var menu2 = ms.addMenu(document.getElementById("mtDropDown_menu2"));
		menu2.addItem("OPEN Stereotactic Gamma-ray Radiotherapy System", "product_1.asp");
		menu2.addItem("TOP Stereotactic Gamma-ray Radiotherapy System", "product_2.asp");
		menu2.addItem("Stereotactic Gamma-ray Whole-body Therapeutic System (SGS-I)", "product_3.asp");
		menu2.addItem("The Whole-Body Stereotactic Gamma System(SGS-I+) ", "prod-sgs1.asp");
		menu2.addItem("Medical Linear Accelerator (LINAC)", "prod-accelerate.asp");
		menu2.addItem("Multi-leaf Collimator", "prod-multileaf.asp");

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