function go(url) {
  if (url) window.location.assign(url);
}

function wopen(url, w, h, res, scroll) {
  if (!url) {
    event.cancelBubble = true;
    event.returnValue = false;
    return;
  }
  target = '_blank';
  if (!w) w = 500;
  if (!h) h = 400

  w = parseInt(w, 10);
  h = parseInt(h, 10);

  var aw = screen.availWidth;
  var ah = screen.availHeight;
  if (w > aw) w = aw;
  if (h > ah) h = ah;

  if (res) r = 0;
  else r = 1;
	
  if (scroll) s = 0;
  else s = 1;

  var left = Math.round((aw - w)/2);
  var top = Math.round((ah - h)/2);

  var wd = window.open(url, target, 'channelmode=0, directories=0, fullscreen=0, height='+h+'px, width='+w+'px, location=0, menubar=0, resizable='+r+', scrollbars='+s+', status=0, toolbar=0, top='+top+'px, left='+left+'px');
}
function flashObj(src, w, h, bgcolor, base, wmode) {
	if (!src) return false;
	//w = parseInt(w);
	h = parseInt(h);
	if (!w || !h) return false;
	if (!bgcolor) bgcolor = '#ffffff';
	if (!base) base = '';
	if (!wmode) wmode = 'window';

	var tag = '';
	tag += '<object width="'+w+'" height="'+h+'" codeBase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000">';
	tag += '<param name="FlashVars" value="">';
	tag += '<param name="Movie" value="'+src+'">';
	tag += '<param name="Src" value="'+src+'">';
	tag += '<param name="wmode" value="'+wmode+'">';
	tag += '<param name="Play" value="1">';
	tag += '<param name="Loop" value="-1">';
	tag += '<param name="Quality" value="High">';
	tag += '<param name="Menu" value="0">';
	tag += '<param name="Base" value="'+base+'">';
	tag += '<param name="Scale" value="ShowAll">';
	tag += '<param name="DeviceFont" value="-1">';
	tag += '<param name="EmbedMovie" value="0">';
	tag += '<param name="BGColor" value="'+bgcolor+'">';
	tag += '<embed src="'+src+'" menu="false" quality="high" bgcolor="'+bgcolor+'" width="'+w+'" height="'+h+'" wmode="'+wmode+'" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"></embed>';
	tag += '</object>';

	document.write(tag);
}
/**
 * Check correct email format
 */
function em_ch(obj) {
    if (!obj) return false;

    var ch = /^[._a-z0-9-]+@[.a-z0-9-]+\.[a-z]{2,4}$/i;
    if (!ch.test(obj.value)) return false;

    return true;
}

function getField(field_name) { return document.getElementById(field_name).value; }
function setField(name, value) { document.getElementById(name).value = value; }
function setHTML(name, value) { document.getElementById(name).innerHTML = value; }

function number_format(number, decimals, dec_point, thousands_sep) {
	var exponent = "";
	var numberstr = number.toString ();
	var eindex = numberstr.indexOf ("e");
	var i, z;
	if(eindex > -1){
		exponent = numberstr.substring (eindex);
		number = parseFloat (numberstr.substring (0, eindex));
	}
	
	if( decimals != null ){
		var temp = Math.pow (10, decimals);
		number = Math.ceil (number * temp) / temp;
	}
	
	var sign = number < 0 ? "-" : "";
	var integer = (number > 0 ? 
	Math.floor (number) : Math.abs (Math.ceil (number))).toString ();
	
	var fractional = number.toString ().substring (integer.length + sign.length);
	dec_point = dec_point != null ? dec_point : ".";
	fractional = decimals != null && decimals > 0 || fractional.length > 1 ? (dec_point + fractional.substring (1)) : "";
	
	if(decimals != null && decimals > 0){
		for(i = fractional.length - 1, z = decimals; i < z; ++i){
			fractional += "0";
		}
	}
	
	thousands_sep = (thousands_sep != dec_point || fractional.length == 0) ? 
	thousands_sep : null;
	
	if(thousands_sep != null && thousands_sep != ""){
		for (i = integer.length - 3; i > 0; i -= 3){
			integer = integer.substring (0 , i) + thousands_sep + integer.substring (i);
		}
	}
	return sign + integer + fractional + exponent;
}

function hlmenu(e) {
  var chs = $(e).children();
  $(chs[0]).hide();
  $(chs[1]).show();
}

function dhlmenu(e) {
  var chs = $(e).children();
  $(chs[0]).show();
  $(chs[1]).hide();
}

function mgo(e) {
  var url = $('div>a', e).attr('href');
  go(url);
}

function activate_category(num) {
  var passive = num == 1 ? 2 : 1;
  $('#category-btn-'+num+'>table>tbody>tr>td').removeClass('inactive');
  $('#category-btn-'+passive+'>table>tbody>tr>td').addClass('inactive');
  $('#category-table-'+passive).hide();
  $('#category-table-'+num).show();
}

function ask_form_chk(f) {
  var f = $(f);
  if (!CHECK_FORM_ERR) {
    return false;
  }
  var error = "";
  $.each(CHECK_FORM_ERR, function(field, err) {
    if (error == "" && $.trim($("*[name='"+field+"']", f).val()) == "") {
      error = err;
    }
  });
  if (error != "") {
    alert(error);
    return false;
  }
  return true;
}