var currenthelcontent = '';
function hidehelpcontent(helpname)
{
if (document.getElementById(helpname)!= null)
{
document.getElementById(helpname).style.visibility='hidden';
document.getElementById(helpname).style.height="0px";
}
}
function showhelpcontent(helpname)
{
if (currenthelcontent!='') 
{
hidehelpcontent(currenthelcontent);
}
if (document.getElementById(helpname)!= null)
{
document.getElementById(helpname).style.visibility='visible';
document.getElementById(helpname).style.height="100%";
currenthelcontent=helpname;
}
}