function switch_panel(from_,to_) {
var target_from, target_to,firsttarget;
if(arguments.length>1)
{
    var frompanel,topanel,pagevalues,fadediv,lightalertdiv;
    frompanel=from_.substring(5);
    topanel=to_.substring(5);
    if(checkrequired(reqlist,from_)===true && (topanel>frompanel))
     {
         pagevalues = getPageSize();
         fadediv = document.getElementById('fadealert');
         lightalertdiv = document.getElementById('lightalert');
         fadediv.style.height = pagevalues[1];
         fadediv.style.display = 'block';
         lightalert.style.top = (pagevalues[3] / 2) - (200 / 2) + pagevalues[4];
         lightalert.style.left = (pagevalues[0] / 2) - (320 / 2);
         lightalert.style.display = 'block';
         document.getElementById("btnCaptchaalert").focus();
     }
     else
     {
        target_from = document.getElementById(from_);
        target_to = document.getElementById(to_);
        document.getElementById("currentpanel").value=to_;
    }
}
else
{
    targetid=YAHOO.util.Cookie.get(GetPageName()+"_currentpanel");
    firsttarget=targetid;
    target_from = document.getElementById('panel1');
    if(targetid==null || targetid=="")
    {
      target_to = document.getElementById('panel1');
      firsttarget='panel1'
    }
    else
    {
        target_to = document.getElementById(targetid);
    }
}
target_from.style.display='none';
target_to.style.display='block';
if(arguments.length>1)
{
    SelectFirstControl(to_);
}
else
{
    SelectFirstControl(firsttarget);
}

return false;};