function toggle_style(obj)
{
	var bg;
	obj.checked == true ? bg="#FF9" : bg="";
	do {
		obj=obj.parentNode;
	} while(obj.nodeName!='TR')
	obj.style.backgroundColor=bg;
}

function toggle_checkbox(name)
{
	var cb = document.getElementsByName(name)[0];
	toggle_cb( cb );
}

function toggle_cb(cb)
{
	cb.checked = !cb.checked;
	toggle_style(cb);
}

function check_cb(cb) 
{
	if( ! cb.checked )
		toggle_cb( cb );
}

function uncheck_cb(cb) 
{
	if( cb.checked )
		toggle_cb( cb );
}

function do_all(form_name,do_cb)
{
	var the_form = document.getElementsByName(form_name)[0];
	var checkboxes = the_form.elements;
	for (i=0;i<checkboxes.length;i++)
	{
		if( checkboxes[i].type == 'checkbox' ) 
			do_cb( checkboxes[i] );
	}
}

function uncheck_all(form_name) {
	do_all(form_name, uncheck_cb);
}

function check_all(form_name) {
	do_all(form_name, check_cb);
}


function addMenu()
{
	var x = document.getElementById('contentTable').rows;
	var y = x[0].cells;
	var menu = document.getElementById('menuTableData');
	if( menu )
		y[0].innerHTML=menu.innerHTML;
}