var isIE = false;

function liveSearchInit()
{
	if (navigator.userAgent.indexOf("Safari") > 0)
	{
		document.getElementById('searchbox').addEventListener("keydown",liveSearchKey,false);
	}
	else if (navigator.product == "Gecko")
	{
		document.getElementById('searchbox').addEventListener("keypress",liveSearchKey,false);
	}
	else
	{
		document.getElementById('searchbox').attachEvent('onkeydown',liveSearchKey);
		isIE = true;
	}

	//document.searchform.livesearch.focus()
}


function liveSearchKey (event)
{
	if (event.keyCode == 40 )
	{
		cnt = document.getElementById("search-results").childNodes.length;

		if(cnt > 0)
		{
			highlight = document.getElementById("ls_highlight");

			if (!highlight)
			{
				highlight = document.getElementById("ls").firstChild;
			}
			else
			{
				highlight.setAttribute("id","li_ls_2");;
				highlight = highlight.nextSibling;
			}

			if (highlight)
			{
				highlight.setAttribute("id","ls_highlight");
			}

			if (!isIE)
			{
				event.preventDefault();
			}
		}

	}
	else if (event.keyCode == 38 )
	{

		cnt = document.getElementById("search-results").childNodes.length;

		if(cnt > 0)
		{
			highlight = document.getElementById("ls_highlight");

			if (!highlight)
			{
				highlight = document.getElementById("ls").lastChild;
			}
			else
			{
				highlight.setAttribute("id","li_ls_2");;
				highlight = highlight.previousSibling;
			}

			if (highlight)
			{
				highlight.setAttribute("id","ls_highlight");
			}

			if (!isIE)
			{
				event.preventDefault();
			}
		}
	}
	else if (event.keyCode == 27)
	{
		anim.hide();
	}
	else if (event.keyCode == 13 )
	{
		return liveSearchSubmit();
	}
	else if (event.keyCode == 8)
	{
		anim.hide();
	}


}

function liveSearchSubmit()
{

	var highlight = document.getElementById("ls_highlight");

	if (highlight && highlight.firstChild)
	{

		document.location.href = highlight.firstChild.getAttribute("href");

		return false;
	}
	else
	{
		return true;
	}
}

function activateSearch()
{
    if ($('search'))
    {
    	//$('searchform').onsubmit = function() { anim.hide();return true; };
		anim = new fx.Height('search-results', {duration: 400});
		anim.hide();
		new Form.Element.Observer('searchbox', 1, doSearch);
        is_searching = false;
    }
}

function doSearch()
{
	if(document.forms.search.livesearch.value.length >= 3 &&
		!IsNumeric(document.forms.search.livesearch.value))
	{

	    if (is_searching)
	    	return false;

	    s = $F('searchbox');
		anim.hide();

	    if (s == '')
	    	return false;

	    is_searching = true;
		Element.show($('wait'));

		pars = Form.serialize('search');
	    var myAjax = new Ajax.Request(
			'livesuche.php',
			{
				method: 'post',
				parameters: pars,
				onComplete:doSearchResponse
			}
		);
	}
}

function doSearchResponse(response)
{
    $('search-results').innerHTML = response.responseText;
	anim.toggle();
	Element.hide($('wait'));
	is_searching = false;
}

function liveSearchHide()
{
	document.getElementById("search-results").style.display = "none";
}

function liveSearchShow()
{
	document.getElementById("search-results").style.display = "block";
	doSearch();
}


function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;


   for (i = 0; i < sText.length && IsNumber == true; i++)
      {
      Char = sText.charAt(i);
      if (ValidChars.indexOf(Char) == -1)
         {
         IsNumber = false;
         }
      }
   return IsNumber;
 }

Event.observe(window, 'load', activateSearch, false);