function addppg(showLayerID)
{
	if(gbi(showLayerID).style.display=='block')
	{
		var courseSelected = false;
		var pgcourse = gbi('pgcourse');
		var ppgcourse = gbi('ppgcourse');
		if ( pgcourse.value != -1 )
		{
			showErrMsg({"ErrDivObj":gbi('error_pgcourse'),"ErrorMsg":"Please deselect the course.","EleToFocus":pgcourse,"StatusObj":gbi('status_pgcourse'),"ob":1,"HName":"Post Graduate Course","label":"lbl_pgcourse"})
			courseSelected = true;
		} else {
			hideErrorCSS('pgcourse','error_pgcourse','status_pgcourse','lbl_pgcourse');
		}
		if ( ppgcourse.value != -1 )
		{
			showErrMsg({"ErrDivObj":gbi('error_ppgcourse'),"ErrorMsg":"Please deselect the course.","EleToFocus":ppgcourse,"StatusObj":gbi('status_ppgcourse'),"ob":1,"HName":"Doctrate Course","label":"lbl_ppgcourse"})
			courseSelected = true;
		} else {
			hideErrorCSS('ppgcourse','error_ppgcourse','status_ppgcourse','lbl_ppgcourse');
		}
		
		if (!courseSelected)
		{
			gbi(showLayerID).style.display='none';
			return 0
		} else {
			return -1;
		}
	}
	else
	{gbi(showLayerID).style.display='block';}
}
function show(showLayerID)
{
	if(gbi(showLayerID).style.display=='none')
	{gbi(showLayerID).style.display='none';}
	else
	{gbi(showLayerID).style.display='block';}
}
function chgContent(content1, content2, layerid)
{
	if(gbi(layerid).innerHTML==content1)
	{gbi(layerid).innerHTML=content2;}
	else
	{gbi(layerid).innerHTML=content1;}
}

<!--
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
//-->