/*
// +----------------------------------------------------------------------+
// | Copyright (c) 2004 Bitflux GmbH                                      |
// +----------------------------------------------------------------------+
// | Licensed under the Apache License, Version 2.0 (the "License");      |
// | you may not use this file except in compliance with the License.     |
// | You may obtain a copy of the License at                              |
// | http://www.apache.org/licenses/LICENSE-2.0                           |
// | Unless required by applicable law or agreed to in writing, software  |
// | distributed under the License is distributed on an "AS IS" BASIS,    |
// | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or      |
// | implied. See the License for the specific language governing         |
// | permissions and limitations under the License.                       |
// +----------------------------------------------------------------------+
// | Author: Bitflux GmbH <devel@bitflux.ch>                              |
// +----------------------------------------------------------------------+

*/
var liveSearchReq = false;
var t = null;
var liveSearchLast = "";
	
var isIE = false;
// on !IE we only have to initialize it once
if (window.XMLHttpRequest) {
	liveSearchReq = new XMLHttpRequest();
}

if( encodeURIComponent == null ) {
    // If the encodeURIComponent method has not been defined (MSIE does not
    //  implement this method until version 5.5), emulate it.
    function encodeURIComponent( s ) {

        function encodeChar( c ) {
    
            function encodeInternalByte( b ) {
                return( encodeByte( b, 128 ) );
            }
        
            function encodeByte( b, mask ) {
                b += mask;
                return( "%" + b.toString( 16 ).toUpperCase() );
            }
        
            function numBytes( c ) {
                if( c <= 127 )
                    return( 1 );
                if( c <= 2047 )
                    return( 2 );
                return( 3 );
            }
        
            var nb = numBytes( c );
            var sOut = "";
            for( var i = 1; i < nb; i++ ) {
                sOut = encodeInternalByte( c & 63 ) + sOut;
                c = c >>> 6;
            }
        
            var a = new Array( 0, 192, 224 );
            sOut = encodeByte( c, a[nb - 1] ) + sOut;
            
            return( sOut );
        }
    
        var sOut = "";

        for( var i = 0; i < s.length; i++ ) {
            var n = s.charCodeAt( i );
            if( n < 128 ) {
                var c = String.fromCharCode( n );
                if( "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.!~*'()".indexOf( c ) != -1 )
                    sOut += c;
                else
                    sOut += encodeChar( n );
            }
            else
                sOut += encodeChar( n );
        }

        return( sOut );

    }
}

function liveSearchInit() {
	
	if (navigator.userAgent.indexOf("Safari") > 0) {
		document.getElementById('livesearch').addEventListener("keydown",liveSearchKeyPress,false);
		document.getElementById('livesearch').addEventListener("blur",liveSearchHide,false);
	} else if (navigator.product == "Gecko") {
		
		document.getElementById('livesearch').addEventListener("keypress",liveSearchKeyPress,false);
		document.getElementById('livesearch').addEventListener("blur",liveSearchHideDelayed,false);
		
	} else {
		document.getElementById('livesearch').attachEvent('onkeydown',liveSearchKeyPress);
		document.getElementById('livesearch').attachEvent("onblur",liveSearchHideDelayed,false);
		isIE = true;
	}
	
	document.getElementById('livesearch').setAttribute("AutoComplete","off");

}

function liveSearchHideDelayed() {
	window.setTimeout(liveSearchHide,400);
}
	
function liveSearchHide() {
	document.getElementById("LSResult").style.display = "none";
	var highlight = document.getElementById("LSHighlight");
	if (highlight) {
		highlight.removeAttribute("id");
	}
}

function liveSearchKeyPress(event) {
    var highlight;
	if (event.keyCode == 40 )
	//KEY DOWN
	{
		highlight = document.getElementById("LSHighlight");
		if (!highlight) {
			highlight = document.getElementById("LSShadow").firstChild.firstChild;
		} else {
			highlight.removeAttribute("id");
			highlight = highlight.nextSibling;
		}
		if (highlight) {
			highlight.setAttribute("id","LSHighlight");
		} 
		if (!isIE) { event.preventDefault(); }
	} 
	//KEY UP
	else if (event.keyCode == 38 ) {
		highlight = document.getElementById("LSHighlight");
		if (!highlight) {
			highlight = document.getElementById("LSResult").firstChild.firstChild.lastChild;
		} 
		else {
			highlight.removeAttribute("id");
			highlight = highlight.previousSibling;
		}
		if (highlight) {
				highlight.setAttribute("id","LSHighlight");
		}
		if (!isIE) { event.preventDefault(); }
	} 
	//ESC
	else if (event.keyCode == 27) {
		highlight = document.getElementById("LSHighlight");
		if (highlight) {
			highlight.removeAttribute("id");
		}
		document.getElementById("LSResult").style.display = "none";
	} 
}
function liveSearchStart() {
    if (t) {
		window.clearTimeout(t);
	}
	t = window.setTimeout("liveSearchDoSearch()",500);
}

function liveSearchDoSearch() {
	if (typeof liveSearchRoot == "undefined") {
		liveSearchRoot = "";
	}
	if (typeof liveSearchRootSubDir == "undefined") {
		liveSearchRootSubDir = "";
	}
	if (typeof liveSearchParams == "undefined") {
		liveSearchParams = "";
	}
	if (liveSearchLast != document.forms.searchform.search.value) {
	if (liveSearchReq && liveSearchReq.readyState < 4) {
		liveSearchReq.abort();
	}
	if (document.forms.searchform.search.value.length < 3) {
		liveSearchHide();
		return false;
	}
	if (window.XMLHttpRequest) {
	// branch for IE/Windows ActiveX version
	} else if (window.ActiveXObject) {
		liveSearchReq = new ActiveXObject("Microsoft.XMLHTTP");
	}
	var q,sid;
	if (window.encodeURIComponent)
	   q = encodeURIComponent(document.forms.searchform.search.value);
	else
	   q = escape(document.forms.searchform.search.value);

    sid = document.getElementById('search_sid');
    
	liveSearchReq.onreadystatechange= liveSearchProcessReqChange;
	liveSearchReq.open("GET", liveSearchRoot + "etc/livesearch.php?q=" + q + (sid ? ('&' + sid.name + '=' + sid.value ) : '' ) + liveSearchParams);
	liveSearchLast = document.forms.searchform.search.value;
	liveSearchReq.send(null);
	}
}

function liveSearchProcessReqChange() {
	
	if (liveSearchReq.readyState == 4) {
		var  res = document.getElementById("LSResult");
		res.style.display = "block";
		var  sh = document.getElementById("LSShadow");

     	sh.innerHTML = liveSearchReq.responseText;
     	if (liveSearchReq.responseText.length == 0)
     	  liveSearchHide();
	}
}

function liveSearchSubmit() {
	var highlight = document.getElementById("LSHighlight");
	if (highlight && highlight.firstChild) {
	    if (highlight.firstChild.getAttribute) {
        	window.location = liveSearchRoot + liveSearchRootSubDir + highlight.firstChild.getAttribute("href");
        } else if (highlight.firstChild.nextSibling.getAttribute) {
            window.location = liveSearchRoot + liveSearchRootSubDir + highlight.firstChild.nextSibling.getAttribute("href");
        }
		return false;
	} 
	else {
		return true;
	}
}