var arcolor = Array('black','#a6c4e8','#588db4','#218569','#73a32e','#ff7200','#b05c1f','#ea0f9a','#5e1982','#00aeef','#a6c4e8','#a6c4e8');
var menuclickflag = false;
window.onload = function() { 
	var cookiemgr = new CookieManager({shelfLife:5});
	var element = document.getElementById("chenge_menu");
	var menuno = cookiemgr.getCookie('menun');
	var panelname = "lmenu" + (parseInt(menuno));
	if (menuno > -1){
		var menucount = element.length;
		for (i = 0; i < menucount; i++ ){
			var wval = element.options[i].value;
			if(wval == menuno) {
				element.selectedIndex = i;
				break;
			}
		}
		var elemenu = document.getElementById("menubox");
		document.getElementById(panelname).style.display = "block";
		elemenu.style.borderColor = arcolor[menuno];
	}
}

function menuclickdown(){
	if(navigator.userAgent.indexOf("MSIE")!=-1) {
		menuclickflag =false;
		} else menuclickflag =true;
}
function menuchenge(){
	menuclickflag = false;
	var cookiemgr = new CookieManager({shelfLife:5});
	var menuboxname = 'menubox';
	var elemenu = document.getElementById("menubox");
	var basename = 'lmenu';
	var element = document.getElementById("chenge_menu");
	var menucount = element.length;
    index = element.selectedIndex;
    lmenuid = element.options[index].value;
    if (index != 0){
        cookiemgr.setCookie('menun',element.selectedIndex);
		var openpanel_name = basename + lmenuid;
		for (i = 1; i < menucount; i++ ){
			var wi = element.options[i].value;
			var panelname = basename + wi;
		    if (panelname != openpanel_name){
		    	document.getElementById(panelname).style.display = "none";
		    }else{
		    	document.getElementById(panelname).style.display = "block";
		    	elemenu.style.borderColor = arcolor[wi];
		    }
		}
    }
    
}
function openinfo(panelno,conts,setcolor,nosetcolor){
    if (panelno != 0){
		for (i = 1; i < (conts + 1); i++ ){
			var elembutton = 'panelbt' + i;
			var elempanel = 'panel' + i;
			var elem1 = document.getElementById(elempanel);
			var elem2 = document.getElementById(elembutton);
			document.getElementById(elembutton)
			
			if(panelno == i){
				elem1.style.display = "block";
				elem2.style.color = setcolor;
			}else{
				elem1.style.display = "none";
				elem2.style.color = nosetcolor;
			}
		}
	}
}
<!--//-->

function popwindow(url,w,h){
	var linkurl = '' + url;
	window.open(linkurl,'window1','scrollbars=no,toolbar=no,width=' + w + ',height=' + h);
	}