function toggle(divid, onoff)
{
 if (onoff == 0) document.getElementById(divid).style.display = "none";
 else document.getElementById(divid).style.display = "block";
}

function minmax(divid)
{
 if (document.getElementById(divid).style.display == "none") document.getElementById(divid).style.display = "block";
 else document.getElementById(divid).style.display = "none";
}


function getParentElement(elem, searchtag)
   {
     while(elem.tagName.toLowerCase() != searchtag)
     {
       if(!elem.parentNode)
         return false;
       elem = elem.parentNode;
     }
     return elem;
   }