var exp = 5;

function newCookie(name,value,days) {
	var expires = "";
 if (days) {
   var date = new Date();
   date.setTime(date.getTime()+(days*24*60*60*1000));
     expires = "; expires="+date.toGMTString(); }
   else {
	 expires = "";
   }
 	//alert("set cookie = " + name+"="+value+expires+"; path=/");
   document.cookie = name+"="+value+expires+"; path=/"; 
}

function readCookie(name) {
	
   var nameSG = name + "=";
   var nuller = '';
  // alert("read cookie = " + document.cookie.indexOf(nameSG));
  if (document.cookie.indexOf(nameSG) == -1)
    return nuller;

   var ca = document.cookie.split(';');
  for(var i=0; i<ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
  if (c.indexOf(nameSG) == 0) return c.substring(nameSG.length,c.length); }
    return null; }

function eraseCookie(name) {
  newCookie(name,"",exp); 
 }

 var mainNum = new Array("a1","a2","a3","a4","a5","a6","a7","a8","a9","a10","a11","a12");  // at the left you should add a1, a2 etc. for each main link you wish to include
                                      // so if you want 3 main links you should add a1, a2, a3 in the format shown
                                      // enclosed in double quotes
                                           // enclosed in double quotes
 var subNum1 = new Array("b1","b2","b3","b4","b5","b6","b7","b8","b9","b10","b11","b12","b13","b14","b15");  // at the left you should add b1, b2 etc. for each sub link you wish to include
                                      // under one main link, here the first main link. so if you want 4 sub links you
                                      // should add b1, b2, b3, b4 in the format shown enclosed in double quotes
 var subNum2 = new Array("c1","c2","c3");  // this is for sub links under the second main link. there are 3 sub links
                                           // in the given example

function openClose(theName, menuArray, theID) {
 for(var i=0; i < menuArray.length; i++) {
	// alert("openClose = " + menuArray[i]+ " : " + theID);
	 if(menuArray[i] != null ) {
		 
	  if (menuArray[i] == theID) {
	    if (document.getElementById(theID).style.display == "block") {
	      document.getElementById(theID).style.display = "none";
	      //document.getElementById("tick_"+menuArray[i]).innerHTML = "+";
	      eraseCookie(theName); }
	    else {
	    		if(theID.charAt(0) == 'a')
	    		{
	    		
	    		var num = readCookie("MN");
	    		var num1 = readCookie("SB");
		    		if (num) {
		    			document.getElementById(num).style.display = "none";
		    		}
		    		
		    		if (num1) {
   						document.getElementById(num1).style.display = "none";
   					}
	    		}
			  document.getElementById(theID).style.display = "block";
			  //document.getElementById("tick_"+menuArray[i]).innerHTML = "-";
			  newCookie(theName,menuArray[i],exp); }
	    }
	 }
 else {
    document.getElementById(menuArray[i]).style.display = "none";
    //document.getElementById("tick_"+menuArray[i]).innerHTML = "+"; 
    }
 }
}

function memStatus() {

 var num = readCookie("MN");
 //alert("num = " + num);
 if (num) {
   document.getElementById(num).style.display = "block";
   //document.getElementById("tick_"+num).innerHTML = "-"; 
   }
 var num1 = readCookie("SB");
 if (num1) {
   document.getElementById(num1).style.display = "block";
   //document.getElementById("tick_"+num1).innerHTML = "-";
    }
}

function resetCookies() {

	eraseCookie('MN');
	eraseCookie('SB');
	
}