function getCookie(NameOfCookie){
    if (document.cookie.length > 0) {              
    begin = document.cookie.indexOf(NameOfCookie+"=");       
    if (begin != -1) {           
      begin += NameOfCookie.length+1;       
      end = document.cookie.indexOf(";", begin);
      if (end == -1) end = document.cookie.length;
        return unescape(document.cookie.substring(begin, end));
    } 
  }
  return null;
}

function setCookie(NameOfCookie, value, expiredays) {
var ExpireDate = new Date();
ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));

  document.cookie = NameOfCookie + "=" + escape(value) + 
  ((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}

function delCookie (NameOfCookie) {
  if (getCookie(NameOfCookie)) {
    document.cookie = NameOfCookie + "=" +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function DoTheCookieStuff(page)
{
x=1000  //must be at least as large as the number of collapsing menus
for (i = 0; i <= x; i++)
 {
menuDisplay=getCookie("c"+i+"_"+page);
if (menuDisplay != null) 
     {
     if (menuDisplay != "block" )
        {
        setIdProperty("s" + i, "display", "none");
        document.images["i" + i].src = "/medschool/portal/images/rtarrow.gif";  
        }
    else
        {
        setIdProperty("s" + i, "display", "block");
        document.images["i" + i].src = "/medschool/portal/images/dnarrow.gif";  
     
        }
     }
 }
}


function showMenu( divNum, page )
{    
    if (getIdProperty( "s" + divNum, "display") != "block" )
    {
        setIdProperty("s" + divNum, "display", "block");
        document.images["i" + divNum].src = "/medschool/portal/images/dnarrow.gif";
 	delCookie("c"+divNum+"_"+page);  
        setCookie("c"+divNum+"_"+page , "block" ,365);
    }
    else
    {
        setIdProperty("s" + divNum, "display", "none");
        document.images["i" + divNum].src = "/medschool/portal/images/rtarrow.gif";
        delCookie("c"+divNum+"_"+page);
        setCookie("c"+divNum+"_"+page , "none" ,365); 
    }
}

setBrowser();