browserName = navigator.appName;
	browserVer = parseInt(navigator.appVersion);
	testbrowser = 0;

	if(browserName=="Netscape" || (browserName.indexOf('Explorer')>0 && browserVer > 3))
	{
		dir="/images/";
		testbrowser=1;

		bt_menu_1_off = new Image(); bt_menu_1_off.src = ""+dir+"bt_menu_1_off.gif";
		bt_menu_1_on = new Image(); bt_menu_1_on.src = ""+dir+"bt_menu_1_on.gif";

		bt_menu_2_off = new Image(); bt_menu_2_off.src = ""+dir+"bt_menu_2_off.png";
		bt_menu_2_on = new Image(); bt_menu_2_on.src = ""+dir+"bt_menu_2_on.png";

		bt_menu_3_off = new Image(); bt_menu_3_off.src = ""+dir+"bt_menu_3_off.gif";
		bt_menu_3_on = new Image(); bt_menu_3_on.src = ""+dir+"bt_menu_3_on.gif";

		bt_menu_4_off = new Image(); bt_menu_4_off.src = ""+dir+"bt_menu_4_off.gif";
		bt_menu_4_on = new Image(); bt_menu_4_on.src = ""+dir+"bt_menu_4_on.gif";

		bt_menu_5_off = new Image(); bt_menu_5_off.src = ""+dir+"bt_menu_5_off.gif";
		bt_menu_5_on = new Image(); bt_menu_5_on.src = ""+dir+"bt_menu_5_on.gif";

		bt_menu_6_off = new Image(); bt_menu_6_off.src = ""+dir+"bt_menu_6_off.gif";
		bt_menu_6_on = new Image(); bt_menu_6_on.src = ""+dir+"bt_menu_6_on.gif";
	}