function setLoginImages(){
	var sUserID = getCookie("UserID");
	if(sUserID != null){
		if(sUserID > 0){
			changeImages('account', '/images_v4/account.gif');
			changeImages('login', '/images_v4/logout.gif');
		}
	}else{
	}
}
function newImage(arg) {
    if (document.images) {
        rslt = new Image();
        rslt.src = arg;
        return rslt;
    }
}

function setCookie(name, value, expire) 
{//Writes cookie values. Expiration date is optional
	document.cookie = name + "=" + escape(value)
  	+ ((expire == null) ? "" : ("; expires=" + expire.toGMTString()))
}

function getCookie (name) {
       var arg = name + "=";
       var alen = arg.length;
       var clen = document.cookie.length;
       var i = 0;
       while (i < clen)
               {
               var j = i + alen;
               if (document.cookie.substring(i, j) == arg)
               return getSessionVal (j);
               i = document.cookie.indexOf(" ", i) + 1;
               if (i == 0) break;
               }
       return null;
   }
function getSessionVal (offset) {
       var endstr = document.cookie.indexOf (";", offset);
       if (endstr == -1)
       endstr = document.cookie.length;
       return unescape(document.cookie.substring(offset, endstr));
  }