// Div visibility

function hidediv( naampje ) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById( naampje ).style.visibility = 'hidden';
	} else {
		if (document.layers) { // Netscape 4
			document.naampje.visibility = 'hidden';
		} else { // IE 4
			document.all.naampje.style.visibility = 'hidden';
		}
	}
}

function showdiv( naampje ) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(naampje).style.visibility = 'visible';
	} else {
		if (document.layers) { // Netscape 4
			document.naampje.visibility = 'visible';
		} else { // IE 4
			document.all.naampje.style.visibility = 'visible';
		}
	}
} 

// XML ellende

var req;

function processPlainReqChange() {
    // only if req shows "loaded"
	if (req.readyState == 4) {
        document.getElementById("pppcontent").innerHTML  += "ready.";
		if (req.status == 200) {
			document.getElementById("pppcontent").innerHTML = req.responseText;
		} else {
            document.getElementById("pppcontent").innerHTML = "There was a problem retrieving the XML data:\n" + req.statusText;
        }
    }
}


function loadPlainDoc(url) {
	req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	} catch(e) {
          		req = false;
        	}
		}
    }
	if(req) {
		document.getElementById("pppcontent").innerHTML  += "Loading information...";
		req.onreadystatechange = processPlainReqChange;
		req.open("GET", url);
		showdiv("infoppp");
		req.send("Data");
	}
}

/*===================================================================
 Author: Matt Kruse
 
 View documentation, examples, and source code at:
     http://www.JavascriptToolbox.com/

 NOTICE: You may use this code for any purpose, commercial or
 private, without any further permission from the author. You may
 remove this notice from your final code if you wish, however it is
 appreciated by the author if at least the web site address is kept.

 This code may NOT be distributed for download from script sites, 
 open source CDs or sites, or any other distribution method. If you
 wish you share this code with others, please direct them to the 
 web site above.
 
 Pleae do not link directly to the .js files on the server above. Copy
 the files to your own server for use with your site or webapp.
 ===================================================================*/
var Position = (function() {
  // Resolve a string identifier to an object
  // ========================================
  function resolveObject(s) {
    if (document.getElementById && document.getElementById(s)!=null) {
      return document.getElementById(s);
    }
    else if (document.all && document.all[s]!=null) {
      return document.all[s];
    }
    else if (document.anchors && document.anchors.length && document.anchors.length>0 && document.anchors[0].x) {
      for (var i=0; i<document.anchors.length; i++) {
        if (document.anchors[i].name==s) { 
          return document.anchors[i]
        }
      }
    }
  }
  
  var pos = {};
  pos.$VERSION = 1.0;
  
  // Set the position of an object
  // =============================
  pos.set = function(o,left,top) {
    if (typeof(o)=="string") {
      o = resolveObject(o);
    }
    if (o==null || !o.style) {
      return false;
    }
    
    // If the second parameter is an object, it is assumed to be the result of getPosition()
    if (typeof(left)=="object") {
      var pos = left;
      left = pos.left;
      top = pos.top;
    }
    
    o.style.left = left + "px";
    o.style.top = top + "px";
    return true;
  };
  
  // Retrieve the position and size of an object
  // ===========================================
  pos.get = function(o) {
    var fixBrowserQuirks = true;
      // If a string is passed in instead of an object ref, resolve it
    if (typeof(o)=="string") {
      o = resolveObject(o);
    }
    
    if (o==null) {
      return null;
    }
    
    var left = 0;
    var top = 0;
    var width = 0;
    var height = 0;
    var parentNode = null;
    var offsetParent = null;
  
    
    offsetParent = o.offsetParent;
    var originalObject = o;
    var el = o; // "el" will be nodes as we walk up, "o" will be saved for offsetParent references
    while (el.parentNode!=null) {
      el = el.parentNode;
      if (el.offsetParent==null) {
      }
      else {
        var considerScroll = true;
        /*
        In Opera, if parentNode of the first object is scrollable, then offsetLeft/offsetTop already 
        take its scroll position into account. If elements further up the chain are scrollable, their 
        scroll offsets still need to be added in. And for some reason, TR nodes have a scrolltop value
        which must be ignored.
        */
        if (fixBrowserQuirks && window.opera) {
          if (el==originalObject.parentNode || el.nodeName=="TR") {
            considerScroll = false;
          }
        }
        if (considerScroll) {
          if (el.scrollTop && el.scrollTop>0) {
            top -= el.scrollTop;
          }
          if (el.scrollLeft && el.scrollLeft>0) {
            left -= el.scrollLeft;
          }
        }
      }
      // If this node is also the offsetParent, add on the offsets and reset to the new offsetParent
      if (el == offsetParent) {
        left += o.offsetLeft;
        if (el.clientLeft && el.nodeName!="TABLE") { 
          left += el.clientLeft;
        }
        top += o.offsetTop;
        if (el.clientTop && el.nodeName!="TABLE") {
          top += el.clientTop;
        }
        o = el;
        if (o.offsetParent==null) {
          if (o.offsetLeft) {
            left += o.offsetLeft;
          }
          if (o.offsetTop) {
            top += o.offsetTop;
          }
        }
        offsetParent = o.offsetParent;
      }
    }
    
  
    if (originalObject.offsetWidth) {
      width = originalObject.offsetWidth;
    }
    if (originalObject.offsetHeight) {
      height = originalObject.offsetHeight;
    }
    
    return {'left':left, 'top':top, 'width':width, 'height':height
        };
  };
  
  // Retrieve the position of an object's center point
  // =================================================
  pos.getCenter = function(o) {
    var c = this.get(o);
    if (c==null) { return null; }
    c.left = c.left + (c.width/2);
    c.top = c.top + (c.height/2);
    return c;
  };
  
  return pos;
})();


// Popup


function ShowInfo( Subject) {
 var myWidth = 0, myHeight = 0, LeftPos=0, TopPos=0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  
    var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
  }
  
  LeftPos = (myWidth/2) -300;
  TopPos = (myHeight /2)-300+scrOfY;
  document.getElementById('infoppp').style.left = eval("'" + LeftPos + "px'");
  document.getElementById('infoppp').style.top = eval("'" + TopPos + "px'");
  document.getElementById("pppcontent").innerHTML  = "<h2>Information</h2>";
  loadPlainDoc ("/Info/?" + Subject );
}

// Searchinput legen/vullen

function Clear(el) {
  if (el.value == localsearchtext) el.value = ""
}

function Fill(el) {
  if (el.value == '') el.value = localsearchtext;
}

// EINDEINDNEINDEI



// global flag
var isIE = false;

// global request and XML document objects
var runningtimer;

// retrieve XML document (reusable generic function);
// parameter is URL string (relative or complete) to
// an .xml file whose Content-Type is a valid XML
// type, such as text/xml; XML source must be from
// same domain as HTML file
function loadXMLDoc(url) {
    // branch for native XMLHttpRequest object
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = processReqChange;
        req.open("GET", url, true);
        req.send(null);
    // branch for IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
        isIE = true;
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = processReqChange;
            req.open("GET", url, true);
            req.send();
        }
    }
}

// handle onreadystatechange event of req object
function processReqChange() {
    // only if req shows "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            buildTopicList();
         } else {
            document.getElementById("statustext").innerHTML = "<h2>There was a problem retrieving the XML data:\n" + req.statusText + "</h2>";
         }
    }
}

function loadDoc(doc) {
    try {
		loadXMLDoc(doc);
    }
    catch(e) {
        var msg = (typeof e == "string") ? e : ((e.message) ? e.message : "Unknown Error");
       	document.getElementById("statustext").innerHTML = "<h2>Unable to get XML data:\n" + msg + "</h2>";
		return;
           
	}
}

// retrieve text of an XML document element, including
// elements using namespaces
function getElementTextNS(prefix, local, parentElem, index) {
    var result = "";
    if (prefix && isIE) {
        // IE/Windows way of handling namespaces
        result = parentElem.getElementsByTagName(prefix + ":" + local)[index];
    } else {
        // the namespace versions of this method 
        // (getElementsByTagNameNS()) operate
        // differently in Safari and Mozilla, but both
        // return value with just local name, provided 
        // there aren't conflicts with non-namespace element
        // names
        result = parentElem.getElementsByTagName(local)[index];
    }
    if (result) {
        // get text, accounting for possible
        // whitespace (carriage return) text nodes 
        if (result.childNodes.length > 1) {
            return result.childNodes[1].nodeValue;
        } else {
            return result.firstChild.nodeValue;    		
        }
    } else {
        return "n/a";
    }
}

// fill Topics select list with items from
// the current XML document
function buildTopicList() {
	var link, item, desc;
    var items = req.responseXML.getElementsByTagName("item");
    // loop through <item> elements, and add each nested
    // <title> element to Topics select element
	var content ="";
	document.getElementById("statustext").innerHTML = + items.length + " items found.";
    
    //var test = req.responseXML.getElementsByTagName ("channel").value;
    //alert("Test: " + test);

    for (var i = 0; i < items.length; i++) {
       item = getElementTextNS("", "title", items[i], 0);
       link = getElementTextNS("", "link", items[i], 0);
       desc = getElementTextNS("", "description", items[i], 0);
       content += "<span class=\"res\"><a href=\"" + link + "\">" + item + "</a><br/>" + desc + "</span>";
    }  
    if ( items.length > 0 )
    {
		content += "<p><a href=\"/search/RenSSGen.php?l=" + document.getElementById("zoeken").lev.value;
		content += "&n=" + document.getElementById("zoeken").naam.value;
		content += "&t=" + document.getElementById("zoeken").type.value;
		content += "\"><img src=\"/images/xml.gif\" border=\"0\"> RSS Feed for this query</a>";
		document.getElementById("resultaten").innerHTML = content;
	} else {
		document.getElementById("resultaten").innerHTML = "";

	}
    
}

function Zoek() 
{
	// hack needed to bypass Onkeypress feature (last character is not passed)
	// will also make sure 400ms pass before the server is contacted, allowing
	// for fast typers to save bandwidth....
	document.Status = "test";
	document.getElementById("statustext").innerHTML ="Stop typing to start search...";
	clearTimeout( runningtimer );
	runningtimer  = setTimeout("ZoekNuEcht();",400);
}
function ZoekNuEcht()
{
	var doc;
	//alert (document.getElementById("zoeken").naam.value);
	doc = "RenSSGen.php?l=" + document.getElementById("zoeken").lev.value;
	doc += "&n=" + document.getElementById("zoeken").naam.value;
	doc += "&t=" + document.getElementById("zoeken").type.value;
	document.getElementById("statustext").innerHTML = "<b>Now searching...</b>";
	loadDoc(doc);
	processReqChange();
}


//*****************************************************************************
// Do not remove this notice.
//
// Copyright 2001 by Mike Hall.
// See http://www.brainjar.com for terms of use.
//*****************************************************************************

// Determine browser and version.

function Browser() {

  var ua, s, i;

  this.isIE    = false;
  this.isNS    = false;
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
}

var browser = new Browser();

// Global object to hold drag information.

var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, id) {

  var el;
  var x, y;

  // If an element id was given, find it. Otherwise use the element being
  // clicked on.

  if (id)
    dragObj.elNode = document.getElementById(id);
  else {
    if (browser.isIE)
      dragObj.elNode = window.event.srcElement;
    if (browser.isNS)
      dragObj.elNode = event.target;

    // If this is a text node, use its parent element.

    if (dragObj.elNode.nodeType == 3)
      dragObj.elNode = dragObj.elNode.parentNode;
  }

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Save starting positions of cursor and element.

  dragObj.cursorStartX = x;
  dragObj.cursorStartY = y;
  dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
  dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);

  if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
  if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;

  // Update element's z-index.

  dragObj.elNode.style.zIndex = ++dragObj.zIndex;

  // Capture mousemove and mouseup events on the page.

  if (browser.isIE) {
    document.attachEvent("onmousemove", dragGo);
    document.attachEvent("onmouseup",   dragStop);
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS) {
    document.addEventListener("mousemove", dragGo,   true);
    document.addEventListener("mouseup",   dragStop, true);
    event.preventDefault();
  }
}

function dragGo(event) {

  var x, y;

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Move drag element by the same amount the cursor has moved.

  dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
  dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

  if (browser.isIE) {
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS)
    event.preventDefault();
}

function dragStop(event) {

  // Stop capturing mousemove and mouseup events.

  if (browser.isIE) {
    document.detachEvent("onmousemove", dragGo);
    document.detachEvent("onmouseup",   dragStop);
  }
  if (browser.isNS) {
    document.removeEventListener("mousemove", dragGo,   true);
    document.removeEventListener("mouseup",   dragStop, true);
  }
}