var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;
function ControlVersion()
{
	var version;
	var axo;
	var e;
	// NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry
	try {
		// version will be set for 7.X or greater players
		axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
		version = axo.GetVariable("$version");
	} catch (e) {
	}
	if (!version)
	{
		try {
			// version will be set for 6.X players only
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
			
			// installed player is some revision of 6.0
			// GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
			// so we have to be careful. 
			
			// default to the first public version
			version = "WIN 6,0,21,0";
			// throws if AllowScripAccess does not exist (introduced in 6.0r47)		
			axo.AllowScriptAccess = "always";
			// safe to call for 6.0r47 or greater
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	}
	if (!version)
	{
		try {
			// version will be set for 4.X or 5.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	}
	if (!version)
	{
		try {
			// version will be set for 3.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = "WIN 3,0,18,0";
		} catch (e) {
		}
	}
	if (!version)
	{
		try {
			// version will be set for 2.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
			version = "WIN 2,0,0,11";
		} catch (e) {
			version = -1;
		}
	}
	
	return version;
}
// JavaScript helper required to detect Flash Player PlugIn version information
function GetSwfVer(){
	// NS/Opera version >= 3 check for Flash plugin in plugin array
	var flashVer = -1;
	
	if (navigator.plugins != null && navigator.plugins.length > 0) {
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
			var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
			var descArray = flashDescription.split(" ");
			var tempArrayMajor = descArray[2].split(".");			
			var versionMajor = tempArrayMajor[0];
			var versionMinor = tempArrayMajor[1];
			var versionRevision = descArray[3];
			if (versionRevision == "") {
				versionRevision = descArray[4];
			}
			if (versionRevision[0] == "d") {
				versionRevision = versionRevision.substring(1);
			} else if (versionRevision[0] == "r") {
				versionRevision = versionRevision.substring(1);
				if (versionRevision.indexOf("d") > 0) {
					versionRevision = versionRevision.substring(0, versionRevision.indexOf("d"));
				}
			}
			var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
		}
	}
	// MSN/WebTV 2.6 supports Flash 4
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
	// WebTV 2.5 supports Flash 3
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
	// older WebTV supports Flash 2
	else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
	else if ( isIE && isWin && !isOpera ) {
		flashVer = ControlVersion();
	}	
	return flashVer;
}
// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
{
	versionStr = GetSwfVer();
	if (versionStr == -1 ) {
		return false;
	} else if (versionStr != 0) {
		if(isIE && isWin && !isOpera) {
			// Given "WIN 2,0,0,11"
			tempArray         = versionStr.split(" "); 	// ["WIN", "2,0,0,11"]
			tempString        = tempArray[1];			// "2,0,0,11"
			versionArray      = tempString.split(",");	// ['2', '0', '0', '11']
		} else {
			versionArray      = versionStr.split(".");
		}
		var versionMajor      = versionArray[0];
		var versionMinor      = versionArray[1];
		var versionRevision   = versionArray[2];
        	// is the major.revision >= requested major.revision AND the minor version >= requested minor
		if (versionMajor > parseFloat(reqMajorVer)) {
			return true;
		} else if (versionMajor == parseFloat(reqMajorVer)) {
			if (versionMinor > parseFloat(reqMinorVer))
				return true;
			else if (versionMinor == parseFloat(reqMinorVer)) {
				if (versionRevision >= parseFloat(reqRevision))
					return true;
			}
		}
		return false;
	}
}
function AC_AddExtension(src, ext)
{
  if (src.indexOf('?') != -1)
    return src.replace(/\?/, ext+'?'); 
  else
    return src + ext;
}
function AC_Generateobj(objAttrs, params, embedAttrs) 
{ 
  var str = '';
  if (isIE && isWin && !isOpera)
  {
    str += '<object ';
    for (var i in objAttrs)
    {
      str += i + '="' + objAttrs[i] + '" ';
    }
    str += '>';
    for (var i in params)
    {
      str += '<param name="' + i + '" value="' + params[i] + '" /> ';
    }
    str += '</object>';
  }
  else
  {
    str += '<embed ';
    for (var i in embedAttrs)
    {
      str += i + '="' + embedAttrs[i] + '" ';
    }
    str += '> </embed>';
  }
  document.write(str);
}
function AC_FL_RunContent(){
  var ret = 
    AC_GetArgs
    (  arguments, ".swf", "movie", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
     , "application/x-shockwave-flash"
    );
  AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
}
function AC_SW_RunContent(){
  var ret = 
    AC_GetArgs
    (  arguments, ".dcr", "src", "clsid:166B1BCA-3F9C-11CF-8075-444553540000"
     , null
    );
  AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
}
function AC_GetArgs(args, ext, srcParamName, classid, mimeType){
  var ret = new Object();
  ret.embedAttrs = new Object();
  ret.params = new Object();
  ret.objAttrs = new Object();
  for (var i=0; i < args.length; i=i+2){
    var currArg = args[i].toLowerCase();    
    switch (currArg){	
      case "classid":
        break;
      case "pluginspage":
        ret.embedAttrs[args[i]] = args[i+1];
        break;
      case "src":
      case "movie":	
        args[i+1] = AC_AddExtension(args[i+1], ext);
        ret.embedAttrs["src"] = args[i+1];
        ret.params[srcParamName] = args[i+1];
        break;
      case "onafterupdate":
      case "onbeforeupdate":
      case "onblur":
      case "oncellchange":
      case "onclick":
      case "ondblclick":
      case "ondrag":
      case "ondragend":
      case "ondragenter":
      case "ondragleave":
      case "ondragover":
      case "ondrop":
      case "onfinish":
      case "onfocus":
      case "onhelp":
      case "onmousedown":
      case "onmouseup":
      case "onmouseover":
      case "onmousemove":
      case "onmouseout":
      case "onkeypress":
      case "onkeydown":
      case "onkeyup":
      case "onload":
      case "onlosecapture":
      case "onpropertychange":
      case "onreadystatechange":
      case "onrowsdelete":
      case "onrowenter":
      case "onrowexit":
      case "onrowsinserted":
      case "onstart":
      case "onscroll":
      case "onbeforeeditfocus":
      case "onactivate":
      case "onbeforedeactivate":
      case "ondeactivate":
      case "type":
      case "codebase":
      case "id":
        ret.objAttrs[args[i]] = args[i+1];
        break;
      case "width":
      case "height":
      case "align":
      case "vspace": 
      case "hspace":
      case "class":
      case "title":
      case "accesskey":
      case "name":
      case "tabindex":
        ret.embedAttrs[args[i]] = ret.objAttrs[args[i]] = args[i+1];
        break;
      default:
        ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
    }
  }
  ret.objAttrs["classid"] = classid;
  if (mimeType) ret.embedAttrs["type"] = mimeType;
  return ret;
}


/*caledar functie voor reserveren*/

function y2ky(myyear)
{
	if( myyear <1000 )
	{
		return myyear+1900;
	}
	else
	{
		return myyear;
	}
}



//Date validation function
function validateDate(s)
{
	//Test for a string
	if (s.length > 0)
	{
		//Create an array to split the date into (dd/mm/yy)
		strarr = new Array ()

		//Use own split function as JScript does not include JavaScripts split function
		own_split(strarr, s, "/");
		
		//3 array elements means day, month, and year
		if (strarr.length == 3)
		{
			//Test the value of each element falls in an acceptable range
			for (var i = 0; i < strarr.length; i++)
			{
				if ((strarr[0] < 0) || (strarr[0] >31)){
					return false;
				}
				if ((strarr[1] < 0) || (strarr[1] >12)){
					return false;
				}
				if ((strarr[2] <= 0) || (strarr[2] >99)){
					return false;
				}
			}
			return true;
		}
		return false;
	}
	return false;
}



function gm(num) {
 var mydate = new Date();
 mydate.setDate(1);
 mydate.setMonth(num-1);
 var datestr = "" + mydate;
 return datestr.substring(4,7);
}

function gy(num) {
  var mydate = new Date();
  return (1900 + eval(mydate.getYear()) + num);
}

function ud(mon) {
  var i = mon.selectedIndex;

  if(mon.options[i].value == "2") {
    document.myform.day.options[30] = null;
    document.myform.day.options[29] = null;
    var j = document.myform.year.selectedIndex;
    var year = eval(document.myform.year.options[j].value);
    if ( ((year%400)==0) || (((year%100)!=0) && ((year%4)==0)) ) {
      if (document.myform.day.options[28] == null) {
        document.myform.day.options[28] = new Option("29");
        document.myform.day.options[28].value = "29";
      }
    } else {
      document.myform.day.options[28] = null;
    }

  }

  if(mon.options[i].value == "1" ||
     mon.options[i].value == "3" ||
     mon.options[i].value == "5" ||
     mon.options[i].value == "7" ||
     mon.options[i].value == "8" ||
     mon.options[i].value == "10" ||
     mon.options[i].value == "12")
  {
    if (document.myform.day.options[28] == null) {
      document.myform.day.options[28] = new Option("29");
      document.myform.day.options[28].value = "29";
    }
    if (document.myform.day.options[29] == null) {
      document.myform.day.options[29] = new Option("30");
      document.myform.day.options[29].value = "30";
    }
    if (document.myform.day.options[30] == null) {
      document.myform.day.options[30] = new Option("31");
      document.myform.day.options[30].value = "31";
    }
  }

  if(mon.options[i].value == "4" ||
     mon.options[i].value == "6" ||
     mon.options[i].value == "9" ||
     mon.options[i].value == "11")
  {
    if (document.myform.day.options[28] == null) {
      document.myform.day.options[28] = new Option("29");
      document.myform.day.options[28].value = "29";
    }
    if (document.myform.day.options[29] == null) {
      document.myform.day.options[29] = new Option("30");
      document.myform.day.options[29].value = "30";
    }
    document.myform.day.options[30] = null;
  }

  if (document.myform.day.selectedIndex == -1)
    document.myform.day.selectedIndex = 0;

}


function showdate() {
  var i = document.myform.month.selectedIndex;
  var j = document.myform.day.selectedIndex;
  var k = document.myform.year.selectedIndex;
  alert(document.myform.month.options[i].value + "/" +
        document.myform.day.options[j].value + "/" +
        document.myform.year.options[k].value)
}


function putcal(month,year) {
  var version = navigator.appVersion;
  if (navigator.appVersion.indexOf("Mac") != -1) {
    calwin = open("","calwin","width=300,height=300,resizable=yes");
  } else {
    calwin = open("","calwin","width=230,height=280,resizable=yes");
  }

  calccal(calwin,month,year);
}

function calccal(targetwin,month,year) {
  var monthname = new Array(12);
  monthname[0] = "Januari";
  monthname[1] = "Februari";
  monthname[2] = "Maart";
  monthname[3] = "April";
  monthname[4] = "Mei";
  monthname[5] = "Juni";
  monthname[6] = "Juli";
  monthname[7] = "Augustus";
  monthname[8] = "September";
  monthname[9] = "Oktober";
  monthname[10] = "November";
  monthname[11] = "December";

  var endday = calclastday(eval(month),eval(year));

  mystr = month + "/01/" + year;
  mydate = new Date(mystr);
  firstday = mydate.getDay();

  var cnt = 0;

  var day = new Array(6);
  for (var i=0; i<6; i++)
    day[i] = new Array(7);

  for (var r=0; r<6; r++)
  {
    for (var c=0; c<7; c++)
    {
      if ((cnt==0) && (c!=firstday))
        continue;
      cnt++;
      day[r][c] = cnt;
      if (cnt==endday)
        break;
    }
    if (cnt==endday)
      break;
  }
	targetwin.document.clear();
  targetwin.document.write("<TABLE><TR VALIGN=TOP><FORM>");

  var prevyear = eval(year) - 1;
  targetwin.document.write("<TD><INPUT TYPE=BUTTON NAME=prevyearbutton VALUE='<<'"+
   " onclick='document.clear();opener.calccal(opener.calwin,"+month+","+prevyear+")'></TD>");

  var prevmonth = calcprevmonth(month);
  var prevmonthyear = calcprevyear(month,year);
  targetwin.document.write("<TD><INPUT TYPE=BUTTON NAME=prevmonthbutton VALUE='&nbsp;<&nbsp;'"+
   " onclick='document.clear();opener.calccal(opener.calwin,"+prevmonth+","+prevmonthyear+")'></TD>");

  targetwin.document.write("<TD COLSPAN=3 ALIGN=CENTER>");
  var index = eval(month) - 1;
  targetwin.document.write("<B>" + monthname[index] + " " + year + "</B></TD>");

  var nextmonth = calcnextmonth(month);
  var nextmonthyear = calcnextyear(month,year);
  targetwin.document.write("<TD><INPUT TYPE=BUTTON NAME=nextmonthbutton VALUE='&nbsp;>&nbsp;'"+
   " onclick='document.clear();opener.calccal(opener.calwin,"+nextmonth+","+nextmonthyear+")'></TD>");

  var nextyear = eval(year) + 1;
  targetwin.document.write("<TD><INPUT TYPE=BUTTON NAME=nextyearbutton VALUE='>>'"+
   " onclick='document.clear();opener.calccal(opener.calwin,"+month+","+nextyear+")'></TD>");

  targetwin.document.write("</TR><TR>");
  targetwin.document.write("<TD><font color=red>Zo</font></TD>");
  targetwin.document.write("<TD>Ma</TD>");
  targetwin.document.write("<TD>Di</TD>");
  targetwin.document.write("<TD>Wo</TD>");
  targetwin.document.write("<TD>Do</TD>");
  targetwin.document.write("<TD>Vr</TD>");
  targetwin.document.write("<TD>Za</TD>");
  targetwin.document.write("</TR>");

  targetwin.document.write("<TR><TD COLSPAN=7><HR NOSHADE></TD></TR>");

  var selectedmonth = eval(month) - 1;
  var today = new Date();
  var thisyear = y2ky(today.getYear());
  var selectedyear = eval(year) - 2003;

  var conditionalpadder = "";

  for(r=0; r<6; r++)
  {
   targetwin.document.write("<TR>");
   for(c=0; c<7; c++)
   {
    targetwin.document.write("<TD>");
    if(day[r][c] != null) {
      if (day[r][c] < 10)
        conditionalpadder = "&nbsp;"
      else
        conditionalpadder = "";
      targetwin.document.write("<INPUT TYPE=BUTTON NAME="+day[r][c]+
        " VALUE=" + conditionalpadder + day[r][c] + conditionalpadder +
        " onClick='window.close();" +
        "opener.document.myform.month.selectedIndex="+selectedmonth+";" +
        "opener.document.myform.year.selectedIndex="+selectedyear+";"+
        "opener.ud(opener.document.myform.month);"+
	"opener.document.myform.day.selectedIndex=this.name-1;"+
	"';" + ">");
    }
    targetwin.document.write("</TD>");
   }
   targetwin.document.write("</TR>");
  }
  targetwin.document.write("</FORM></TABLE>");
	targetwin.document.close();
}

function calclastday(month,year) {
  if ((month==2) && ((year%4)==0))
    return 29;

  if ((month==2) && ((year%4)!=0))
    return 28;

  if ((month==1) || (month == 3) || (month == 5) || (month == 7) ||
      (month==8) || (month == 10) || (month ==12))
    return 31;

  return 30;
}

function calcnextmonth(month) {
  if (month=="12")
    return "1";
  else
    return (eval(month)+1);
}

function calcnextyear(month,year) {
  if (month=="12")
    return (eval(year)+1);
  else
    return (year);
}

function calcprevmonth(month) {
  if (month=="1")
    return "12";
  else
    return (eval(month)-1);
}

function calcprevyear(month,year) {
  if (month=="1")
    return (eval(year)-1);
  else
    return (year);
}