function hiec_show(elementId)
{
    $get(elementId).style.display = 'block';
}
function hiec_hide(elementId)
{
    $get(elementId).style.display = 'none';
}
function hiecAddCssClass(elem, className)
{
    var names = elem.className.split(' ');
    var newCss = ''; var added = false;
    for(var i=0; i < names.length; i++)
    {
        newCss += names[i] + ' ';
        if(names[i] == className) added=true;
    }
    if(!added) newCss += className;
    elem.className = newCss.trim();
}
function hiecRemoveCssClass(elem, className)
{
    var names = elem.className.split(' ');
    var newCss = '';
    for(var i=0; i < names.length; i++) 
    {
        if(names[i] != className) newCss += names[i] + ' ';
    }
    elem.className = newCss.trim();
}
function hiecShowLogin()
{
    var modalPopupBehavior = $find('loginBehaviorId');
    modalPopupBehavior.show();
    $get(hiecLoginTextboxId).focus()
}

// For Teacher Registration

var timerID = 0;
var tStart  = null;

function StartTimer(controlId)
{
    if (timerID) clearTimeout(timerID);
    timerID = setTimeout("UpdateData('" + controlId + "')", 500);
}

function StopTimer() {
    clearTimeout(timerID);
    timerID = 0;
}

function UpdateData(controlId)
{
   StopTimer();
   __doPostBack(controlId, '')
}