if (document.images) {
	m1on = new Image();
	m1on.src = "images/m1on.gif";
	m1off = new Image();
	m1off.src = "images/m1off.gif";
	m2on = new Image();
	m2on.src = "images/m2on.gif";
	m2off = new Image();
	m2off.src = "images/m2off.gif";
	m3on = new Image();
	m3on.src = "images/m3on.gif";
	m3off = new Image();
	m3off.src = "images/m3off.gif";
	m4on = new Image();
	m4on.src = "images/m4on.gif";
	m4off = new Image();
	m4off.src = "images/m4off.gif";
	m5on = new Image();
	m5on.src = "images/m5on.gif";
	m5off = new Image();
	m5off.src = "images/m5off.gif";
	m6on = new Image();
	m6on.src = "images/m6on.gif";
	m6off = new Image();
	m6off.src = "images/m6off.gif";
	m7on = new Image();
	m7on.src = "images/m7on.gif";
	m7off = new Image();
	m7off.src = "images/m7off.gif";
	m8on = new Image();
	m8on.src = "images/m8on.gif";
	m8off = new Image();
	m8off.src = "images/m8off.gif";
	m9on = new Image();
	m9on.src = "images/m9on.gif";
	m9off = new Image();
	m9off.src = "images/m9off.gif";
	m10on = new Image();
	m10on.src = "images/m10on.gif";
	m10off = new Image();
	m10off.src = "images/m10off.gif";
	m11on = new Image();
	m11on.src = "images/m11on.gif";
	m11off = new Image();
	m11off.src = "images/m11off.gif";
	m12on = new Image();
	m12on.src = "images/m12on.gif";
	m12off = new Image();
	m12off.src = "images/m12off.gif";
	m13on = new Image();
	m13on.src = "images/m13on.gif";
	m13off = new Image();
	m13off.src = "images/m13off.gif";

	navHome_link_on = new Image();
	navHome_link_on.src = "images/navHome1_btn_link_on.gif";
	navHome_link_off = new Image();
	navHome_link_off.src = "images/navHome1_btn_link_off.gif";
	navHome_wholesaler_on = new Image();	
	navHome_wholesaler_on.src = "images/navHome1_btn_wholesaler_on.gif";
	navHome_wholesaler_off = new Image();
	navHome_wholesaler_off.src = "images/navHome1_btn_wholesaler_off.gif";
	navHome_message_on = new Image();	
	navHome_message_on.src = "images/navHome1_btn_message_on.gif";
	navHome_message_off = new Image();
	navHome_message_off.src = "images/navHome1_btn_message_off.gif";
	
	navHome_aboutus_on = new Image();	
	navHome_aboutus_on.src = "images/navHome2_btn_aboutUs_on.gif";
	navHome_aboutus_off = new Image();
	navHome_aboutus_off.src = "images/navHome2_btn_aboutUs_off.gif";
	navHome_contactus_on = new Image();	
	navHome_contactus_on.src = "images/navHome2_btn_contactUs_on.gif";
	navHome_contactus_off = new Image();
	navHome_contactus_off.src = "images/navHome2_btn_contactUs_off.gif";
	navHome_helpdesk_on = new Image();	
	navHome_helpdesk_on.src = "images/navHome2_btn_helpDesk_on.gif";
	navHome_helpdesk_off = new Image();
	navHome_helpdesk_off.src = "images/navHome2_btn_helpDesk_off.gif";
	navHome_member_on = new Image();	
	navHome_member_on.src = "images/navHome2_btn_memberArea_on.gif";
	navHome_member_off = new Image();
	navHome_member_off.src = "images/navHome2_btn_memberArea_off.gif";
}

	function rollon(imgName) {
		if (document.images) {
			imgOn = eval(imgName + "on.src");
			document[imgName].src = imgOn;
		}
	}
	
	function rolloff(imgName) {
		if (document.images) {
			document[imgName].src = eval(imgName + "off.src");
		}
	}