function frm_onload(frmname,heightID)
{
	if(heightID.length == 0) {
		heightID ='mitteTop2';
	}
//var div_height = window.frames[0].document.getElementById('panelMain').offsetHeight;
var div_height = window.frames['iframe_name'].document.getElementById(heightID).offsetHeight;
document.getElementById(frmname).style.height = div_height+50+'px';
}