function imgToggle() { 
				str = imgToggle.arguments[0];
				str = (navigator.appName == 'Netscape') ? 'document.' + str : 'document.all.' + str;
				img = eval(str);
				if (img) {
					if (img.ori_src == null) {
						img.ori_src = img.src;
						img.src = imgToggle.arguments[1];
					}
					else {
						var temp = img.src;
						img.src = img.ori_src;
						img.ori_src = temp;
					}
				}
			}
		
			function imgPreLoad() { 
				var img_list = imgPreLoad.arguments;
				if (document.preloadlist == null) document.preloadlist = new Array();
				var top = document.preloadlist.length;
				for (var i=0; i < img_list.length; i++) {
					document.preloadlist[top+i] = new Image;
					document.preloadlist[top+i].src = img_list[i];
				} 
			}

/*
			function left_menu_init() {
				imgPreLoad('./img/lm1on.gif','./img/lm2on.gif','./img/lm3on.gif','./img/lm4on.gif','./img/lm5on.gif','./img/sm6on.gif','./img/sm7on.gif','./img/sm8on.gif');
			}
*/	
			function Enflash(url) {
				var wn = window.open(url, "winName", "width=1024, height=768, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=no");
				wn.focus();
			}
			function Etest(url) {
				var wn = window.open(url, "winName", "width=825, height=600, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}
			function Etest_heighter(url) {
				var wn = window.open(url, "winName", "width=825, height=650, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}
			function Storytelling(url) {
				var wn = window.open(url, "winName", "width=825, height=600, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}
			function game(url) {
				var wn = window.open(url, "winName", "width=825, height=600, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}
			function review(url) {
				var wn = window.open(url, "winName", "width=620, height=420, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}
			function sample(url) {
				var wn = window.open(url, "winName", "width=670, height=420, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}
			function News(url) {
				var wn = window.open(url, "winName", "width=1040, height=768, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}
			function Page(url) {
				var wn = window.open(url, "winName", "width=1024, height=768, titlebar=no, toolbar=no, menubar=no, location=no, directories=no, status=no,resizable=yes,scrollbars=yes");
				wn.focus();
			}