window.addEvent('domready', function()
{
	if(Browser.Engine.trident && Browser.Engine.version && (Browser.Engine.trident == true && Browser.Engine.version == 4))
	{
		if (document.all && /MSIE (5\.5|6)/.test(navigator.userAgent) && document.styleSheets && document.styleSheets[0] && document.styleSheets[0].addRule)
		{
			document.styleSheets[0].addRule('.png', 'behavior: url(css/iepngfix.htc)');
		}
	}
	setMenuSelBG();
	
});

window.addEvent('resize', function()
{
	setMenuSelBG();
});

function setMenuSelBG()
{
	if($$('#menu li.selected').length > 0)
	{
		var objMenuSel = $$('#menu li.selected')[0];
		var objSel = $('menuSelBG');
		objSel.setStyles(
		{
			'top':objMenuSel.getCoordinates().top+'px',
			'width':objMenuSel.getCoordinates().right+'px',
			'display':'block'
		});
	}
}

function showThMsg(pos) {
  var msgs = $$('.thMessage');
  for(i = 0; i < msgs.length; i++) {
    msgs[i].setStyles(
		{
			'display':'none'
		});
  }
  if(pos) {
    $('thMsg'+pos).setStyles(
		{
			'display':'block'
		});
	}
}

function checkVal(obj,txt) {
    $(obj).setStyles(
		{
			'color':'#000'
		});
		if(obj.value == txt) obj.value = '';
}

function checkValBlur(obj,txt) {
   if(obj.value == txt) obj.value = txt;
   if(obj.value == '') obj.value = txt;
    $(obj).setStyles(
		{
			'color':'#7e7e7e'
		});   
}

function checkForm(frm) {
  var err = '';
  //if(frm.FORUMHeadline.value == '' || frm.FORUMHeadline.value == 'Your name') err += 'Please provide your name.<br/>'
  if(frm.Message.value == '' || frm.Message.value == 'Your message') err += 'Please provide your message.<br/>'
  
  if(err == '') {
    frm.submit();
  }  
  else {
    $('error').innerHTML = err;
  }
}