function hide_menu(what) {
	if (document.getElementById) {
		document.getElementById(what).style.visibility = "hidden";
	}
	else if (document.all) {
		document.all[what].style.visibility = "hidden";
	}
	else if (document.layers) {
		document.layers[what].visibility = "hidden";
	}
}

function show_menu(what) {
	if (document.getElementById) {
		document.getElementById(what).style.visibility = "visible";
	}
	else if (document.all) {
		document.all[what].style.visibility = "visible";
	}
	else if (document.layers) {
		document.layers[what].visibility = "visible";
	}
}

function handle_menu(action, names) {
	var aMenu, nMenuLen;

	aMenu = names.split(",");
	nMenuLen = aMenu.length;

	if (action == "pahel") {
		for (i = 0; i < nMenuLen; i++)
			hide_menu(aMenu[i]);
	}
	else if (action == "berel") {
  	for (i = 0; i < nMenuLen; i++)
			show_menu(aMenu[i]);
	}
}

function MM_openBrWindow(theURL, winName, features) {
  window.open(theURL, winName, features);
}

function tableruler()
{
	if (document.getElementById && document.createTextNode)
	{
		var tables=document.getElementsByTagName('table');
		for (var i=0;i<tables.length;i++)
		{
			if(tables[i].className=='ruler')
			{
				var trs=tables[i].getElementsByTagName('tr');
				for(var j=0;j<trs.length;j++)
				{
					if(trs[j].parentNode.nodeName=='TBODY')
					{
						trs[j].onmouseover=function(){this.className='ruled';return false}
						trs[j].onmouseout=function(){this.className='';return false}
					}
				}
			}
		}
	}
}