var zoekterm = unescape(document.location.search);
var myRefWindow;

function getEventTarget(e){
    var theTarget;
                if (!e) var e = window.event;
                if (e.target) theTarget = e.target;
                else if (e.srcElement) theTarget = e.srcElement;
                if (theTarget.nodeType == 3) // defeat Safari bug
                    theTarget = theTarget.parentNode;
                return theTarget;
            }
            function getEvent(e){
                var theEvent;
                if (window.event && window.event != null) {
                    theEvent = window.event;
                } else {
                    theEvent = e;
                }
                  return theEvent;
            }
            
            var StickNotesisdrag=false;
            var StickNotesx,StickNotesy;
            var StickNotesmovingobj;
            
            function StickNotesmouseDown(e){
               e = getEvent(e);
               StickNotesmovingobj = getEventTarget(e);
               while(StickNotesmovingobj.id != "clBoom"){
                   StickNotesmovingobj = StickNotesmovingobj.parentNode;
                   if(StickNotesmovingobj == null){
                       return null;
                   }
               }
               StickNotesisdrag = true;
               if(StickNotesisdrag){
                   if(StickNotesmovingobj.currentStyle){
                   //IE
                       StickNotestx = parseInt(StickNotesmovingobj.currentStyle.left+0); //element start pos.
                       StickNotesty = parseInt(StickNotesmovingobj.currentStyle.top+0);
                   } else {
                   //FF
                           StickNotestx = parseInt(window.getComputedStyle(StickNotesmovingobj,'').left+0); //element start pos.
                           StickNotesty = parseInt(window.getComputedStyle(StickNotesmovingobj,'').top+0);
                   }
                   StickNotesx = e.clientX; //event start pos.
                   StickNotesy = e.clientY;
                   document.onmousemove=StickNotesdragWin;
                   return false;
               }
            }
            function StickNotesdragWin(e)
            {
             e = getEvent(e);
             if (StickNotesisdrag)
             {
               if(e.clientX){
                   left = StickNotestx + e.clientX - StickNotesx;
               }
               if(e.clientY){
                   itop  = StickNotesty + e.clientY - StickNotesy;
               }
               StickNotesmovingobj.style.left = left+'px';
               StickNotesmovingobj.style.top = itop+'px';
               return false;
             }
            }
            function StickNotesmouseUp(e){
               StickNotesisdrag=false;
            };
            
            document.onmouseup=StickNotesmouseUp;
            document.onmousedown=StickNotesmouseDown; 
function selectTab(tab)
{
    //alert (tab)
    // eerste rij
    if (document.getElementById("aiselected").style.display != "none")
    {
        document.getElementById("aiselected").style.display = "none";
        document.getElementById("ai").style.display = "";
    }
    if (document.getElementById("bvselected").style.display != "none")
    {
        document.getElementById("bvselected").style.display = "none";
        document.getElementById("bv").style.display = "";
    }
    if (document.getElementById("drselected").style.display != "none")
    {
        document.getElementById("drselected").style.display = "none";
        document.getElementById("dr").style.display = "";
    }
    if (document.getElementById("soselected").style.display != "none")
    {
        document.getElementById("soselected").style.display = "none";
        document.getElementById("so").style.display = "";
    }
    if (document.getElementById("blselected").style.display != "none")
    {
        document.getElementById("blselected").style.display = "none";
        document.getElementById("bl").style.display = "";
    }
    if (tab != "init")
    {
        document.getElementById(tab).style.display = "none";
        document.getElementById(tab + "selected").style.display = "";
    }
}
function naarBoom(nummer,breedte,hoogte)
{
    var param = 'left=300,top=200,width=' + (breedte+10) + ',height=' + (hoogte+10) + ',toolbar=0,resizable=0,location=no,status=no';
    var myRef = window.open('/gkist/ai/ai_beslisbomen.htm?boom=' + nummer,'Beslisbomen',param);
    document.location = "/gkist/ai/va/vraag" + nummer + "/vraag" + nummer + ".htm";
}
function naarBegrip(begrip) {
    checkWindow();
    var myURL = '173.htm#' + begrip;
    var breedte = 500;
    var hoogte = 300;
    var param = 'left=0,top=0,width=' + (breedte+10) + ',height=' + (hoogte+10) + ',scrollbars=1,toolbar=0,resizable=0,location=no,status=no';
    myRefWindow = window.open(myURL,'Begrippen',param);
}
function checkWindow() {
  if (myRefWindow && myRefWindow.open && !myRefWindow.closed) myRefWindow.close();
}

function printContent()
{
    //alert (zoekterm);
    if (zoekterm == "")
    {
        var venster = window.open (document.location + "?optie=print","Printformaat","left=300,top=200,width=660,height=630,resizable=1,scrollbars=1,toolbar=0,location=no,status=no");
    }
}