// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();

// *** BROWSER VERSION ***
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
            && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
            && (agt.indexOf('webtv')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_nav5 = (is_nav && (is_major == 5));
var is_nav5up = (is_nav && (is_major >= 5));
var is_nav45up = (is_nav && (is_minor >= 4.5));
var is_nav47down = (is_nav && (is_minor < 4.7));

var is_ie   = (agt.indexOf("msie") != -1);
var is_ie3  = (is_ie && (is_major < 4));
var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5")==-1) );
var is_ie4up  = (is_ie  && (is_major >= 4));
var is_ie5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5")!=-1) );
var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);
var is_ie6=agt.indexOf("msie 6")!=-1;
var is_ie60b=agt.indexOf("msie 6.0b")!=-1;

var is_opera = (agt.indexOf('opera')!=-1);
var is_opera4 = (agt.indexOf('opera 4')!=-1);
var is_opera5 = (agt.indexOf('opera 5')!=-1);

var is_ff = (agt.indexOf("firefox")!=-1);


//Medewerker oproepen
function medew(PersoonNaam,PNR){
if(PersoonNaam!=0) {
  if(PersoonNaam) document.getElementById('person').src="../img/medewerkers/"+PersoonNaam+".jpg";
    document.getElementById('personlayer').style.visibility="visible";
    myEffects.fade('grijs',PNR);
    eval("document.getElementById('persontext"+PNR+"').style.visibility='visible'");
  } else {
    myEffects.fade('grijs',PNR);
  }
}

//Sekretaresses oproepen
function medew2(PersoonNaam,PNR){
if(PersoonNaam!=0) {
  if(PersoonNaam) document.getElementById('person').src="../img/medewerkers/"+PersoonNaam+".jpg";
    document.getElementById('personlayer2').style.visibility="visible";
    myEffects.fade('grijs2',PNR);
    eval("document.getElementById('persontext"+PNR+"').style.visibility='visible'");
  } else {
    myEffects.fade('grijs2',PNR);
  }
}



var myEffects = { fade: function(logo,PNR) {
if(!is_ie){
  var opac = ["0",".1",".2",".3",".4",".5",".6",".7",".8",".9","1"];
  if (document.getElementById(logo).style.display == 'none') {
    document.getElementById(logo).style.opacity = '0';
    document.getElementById(logo).style.MozOpacity = '0';
    document.getElementById(logo).style.display = 'block';
    for (var i = 0; i < 11; i++) {
      setTimeout('document.getElementById(\''+logo+'\').style.opacity = "'+opac[i]+'";', i * 60);
      setTimeout('document.getElementById(\''+logo+'\').style.MozOpacity= "'+opac[i]+'";', i * 60);
    }
  }else{
    opac.reverse();
    for (var i = 0; i < 11; i++) {
      setTimeout('document.getElementById(\''+logo+'\').style.opacity = "'+opac[i]+'";', i * 60);
      setTimeout('document.getElementById(\''+logo+'\').style.MozOpacity= "'+opac[i]+'";', i * 60);
    }
    setTimeout('document.getElementById(\''+logo+'\').style.display = "none";', i * 60);
    setTimeout('document.getElementById(\'persontext'+PNR+'\').style.visibility = "hidden";', i * 50);
		if (logo=="grijs") {
			setTimeout('document.getElementById(\'personlayer\').style.visibility = "hidden";', i * 50);
		} else {
			setTimeout('document.getElementById(\'personlayer2\').style.visibility = "hidden";', i * 50);
		}
  }
} else {
  var opac = ["0","10","20","30","40","50","60","70","80","90","100"];
  if (document.getElementById(logo).style.display == 'none'){
    document.getElementById(logo).style.filter = "Alpha(opacity='0', finishopacity=0)";
    document.getElementById(logo).style.display = 'block';
    for (var i = 0; i < 11; i++){
      setTimeout('document.getElementById(\''+logo+'\').style.filter = "Alpha(opacity=\''+opac[i]+'\', finishopacity=0)";', i * 60);
    }
  }else{
    opac.reverse();
    for (var i = 0; i < 11; i++) {
      setTimeout('document.getElementById(\''+logo+'\').style.filter = "Alpha(opacity=\''+opac[i]+'\', finishopacity=0)";', i * 60);
    }
    setTimeout('document.getElementById(\''+logo+'\').style.display = "none";', i * 60);
    setTimeout('document.getElementById(\'persontext'+PNR+'\').style.visibility = "hidden";', i * 50);
    if (logo=="grijs") {
			setTimeout('document.getElementById(\'personlayer\').style.visibility = "hidden";', i * 50);
		} else {
			setTimeout('document.getElementById(\'personlayer2\').style.visibility = "hidden";', i * 50);
		}
  }
}
}
}