function lightMenu(el, child_el_name) {
  var child_el=(document.all)?document.all[child_el_name]:document.getElementById(child_el_name);
   	child_el.className=(child_el.className=="menu")?"menuOn":"menu";
   	el.className=(el.className=="menuOn")?"menu":"menuOn";
}

var isIE = document.all?true:false;
var isNS = document.layers?true:false;
function onlyDigits(e) {
var _ret = true;
if (isIE) {
if ((window.event.keyCode < 48 && window.event.keyCode!=46) || window.event.keyCode > 57) {
window.event.keyCode = 0;
_ret = false;
}
}
if (isNS) {
if ((e.which < 48  && window.event.keyCode!=46) || e.which > 57) {
e.which = 0;
_ret = false;
}
}
return (_ret); 
}

function isEmptyString(str) {
	for (var i=0; i < str.length; i++)
		if (str.charAt(i)!=" " && str.charAt(i)!="\n" && str.charAt(i)!="\t" && str.charAt(i)!="\r")
			return false;
	return true;
}

function printWin(id) {
	var lk="";
	if (printWin.arguments.length>1)
		lk="&lang_key="+printWin.arguments[1];
	self.open("print_page.asp?page_id="+id+lk,"print_win","");
}

function __getElement(el_id){
	return (document.getElementById)?document.getElementById(el_id):(document.all)?document.all[el_id]:null;
}
function roundMe(num) {
	num+="";
	var dec_place=0;
	if (isNaN(num))
		return num;
	
	if (roundMe.arguments.length>1) 
		return parseInt(num)+(parseInt(num*100%100)*Math.pow(0.1,roundMe.arguments[1]));
	else
		return parseInt(parseFloat(num)+0.5);
}