function exopen(elem){
	window.open(elem.href,
				null,
				"height=600,width=750,status=yes,toolbar=no,menubar=no,location=no,resizable=yes,scrollbars=yes");
	if(window.event) window.event.returnValue = false;
	return false;
}

function ext2open(trid){
	var desc = $("#desc"+trid);
	if(!desc.is(":visible")){
		$("#desctr"+trid).show();
		desc.show(500);
	} else {
		desc.hide(500, function(){$("#desctr"+trid).hide();});	
	}
	if(window.event) window.event.returnValue = false;
	return false;
}