// Startup Functions
function startUp(){
	
	// Set Random Page Background
	randomBackground();
	
	// Uncheck all checkboxes and radio-buttons on Page
	if (document.form){
		unCheck();
	}
}


function isSet( variable ){
	return( typeof( variable ) != 'undefined' );
}


function randomBackground() {

	// Set some vars
	var bg = new Array();
	var imgPath = ( isSet( top.imgPath ) ) ? top.imgPath : '';
	var imgNr = Math.ceil(5*Math.random()); // create random nr

	// Set the background images
	bg[1] = "img/bg/bg_default1.jpg";
	bg[2] = "img/bg/bg_default2.jpg";
	bg[3] = "img/bg/bg_default3.jpg";
	bg[4] = "img/bg/bg_default4.jpg";
	bg[5] = "img/bg/bg_default5.jpg";

	// Set the background Image
	var bgImg = imgPath + bg[imgNr];
	document.body.style.background = "url(" + bgImg + ")";
}



//-----> Change class

function doMenu(tid,tstatus,tzi){
	
	id = document.getElementById(tid);
	
	if (tstatus == "on"){
		id.className = "b-"+tid+"-omo";
		id.style.zIndex = "10";
	} else {
		id.className = "b-"+tid;
	}
}


//-----> Preload images

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}



//-----> Swap images

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function CheckFocus() {
	self.focus();
}


//-----> Open popup

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


//-----> Switch menu
function switchMenu(obj) {
	if (document.getElementById) {
		
		var el = document.getElementById(obj);
		var sBoxes = new Array("type-01","type-02");
	
		if (el.style.display == "none") {
			el.style.display = "block";
			
			// Overige boxes uitzetten
			for (var i=0; i < sBoxes.length; i++) {
				if (obj != sBoxes[i])	document.getElementById(sBoxes[i]).style.display = "none";
			}

		}	else {
			el.style.display = "block";
		}
	}
}

//-----> Switch plattegrond
function switchPlattegrond(obj, idname, eldisabled) {

	//alert(document.getElementById(obj));
	eldisabled = typeof(eldisabled) != 'undefined' ? eldisabled : false;
	
	if (document.getElementById) {
		
		var el = document.getElementById(obj);
		var formName = "subcategory1";
		var elCheck = document.getElementById(idname);
		
		if (el.style.display == "none") {
			//document.getElementById(idname).checked = 1;
			elCheck.checked = 1;
			el.style.display = "block";
			//document.getElementById("subscheck1").checked = 1;
			//document.forms[formName].elements[0].checked = 1;
		}	else {
			el.style.display = "none";
			elCheck.checked = 0;
			//document.getElementById("subscheck").checked = 0;
			//document.forms[formName44].elements[0].checked = 0;
		}
		
		/*
		if( eldisabled ) {
			alert( elCheck.id );
			//document.getElementById("basis-01-zitkamer").style.display = "none";
			//document.getElementById( elCheck ).checked = 1;
			document.getElementById( eldisabled ).checked = 0;
			//alert( eldisabled );
		}		
		*/
		if( idname == 'subscheck4' ) {
			//el.style.display = "none";
			document.getElementById("basis-01-eetkamer").style.display = "none";
			document.getElementById("subscheck3").checked = 0;
		}
		if( idname == 'subscheck3' ) {
			if( document.getElementById("basis-01-zitkamer") ) {
				document.getElementById("basis-01-zitkamer").style.display = "none";
				document.getElementById("subscheck4").checked = 0;
			}
		}	
			
	}
}

//-----> Switch plattegrond Tab1
function switchPlattegrondOptie1(show) {

	if (document.getElementById) {
		
		var el = document.getElementById(show);
		var aOpties = new Array("basis-02-optie-00","basis-02-optie-01", "basis-02-optie-02");
	
		if (el.style.display == "none") {
			
			// Overige boxes uitzetten
			for (var i=0; i < aOpties.length; i++) {
				if (show != aOpties[i])	document.getElementById(aOpties[i]).style.display = "none";
			}
			
			el.style.display = "block";

		}	else {
			el.style.display = "block";
		}
	}
}

//-----> Switch plattegrond Tab2
function switchPlattegrondOptie2(show) {

	if (document.getElementById) {
		
		var el = document.getElementById(show);
		var aOpties = new Array("basis-03-optie-00","basis-03-optie-01", "basis-03-optie-02");
	
		if (el.style.display == "none") {
			
			// Overige boxes uitzetten
			for (var i=0; i < aOpties.length; i++) {
				if (show != aOpties[i])	document.getElementById(aOpties[i]).style.display = "none";
			}
			
			el.style.display = "block";

		}	else {
			el.style.display = "block";
		}
	}
}


//-----> Switch tabbladen
function switchTabblad(obj,tab,plat) {
	if (document.getElementById) {

		var el = document.getElementById(obj);
		var elTabs = document.getElementById(tab);
		
		var elBasis = document.getElementById(plat);
		var aMenu = new Array("menu-01","menu-02","menu-03");
		var aTabs = new Array("tab01","tab02","tab03");
		var aPlat = new Array("basis-01","basis-02","basis-03");

		if (el.style.display == "none") {

			// Switch Plattegrond Check Tabs
			for (var i=0; i < aPlat.length; i++) {
				if (obj != aPlat[i])	document.getElementById(aPlat[i]).style.display = "none";
			}
			elBasis.style.display = "block";

			// Switch Tabs Check Tabs
			for (var i=0; i < aTabs.length; i++) {
				if (obj != aTabs[i])	document.getElementById(aTabs[i]).src = "../img/" + aTabs[i] + ".gif";
			}
			elTabs.src = "../img/" + tab + "_omo.gif";

			// Switch Menu Check Menu
			for (var i=0; i < aMenu.length; i++) {
				if (obj != aMenu[i])	document.getElementById(aMenu[i]).style.display = "none";
			}
			el.style.display = "block";

		}	else {

			basis01.style.display = "block";
			basis02.style.display = "none";

			el.style.display = "block";
		}
	}
}


//-----> Switch tabbladen
function unCheck() {
	
	var formName1 = "subcategory1";
	var formName2 = "subcategory2";
	var formName3 = "subcategory3";
	var count1 = document.forms[formName1].elements.length;
	var count2 = document.forms[formName2].elements.length;
	var count3 = document.forms[formName3].elements.length;

  for (i=0; i < count1; i++) {
  		document.forms[formName1].elements[i].checked = 0; 
  }
  
  for (i=0; i < count2; i++) {
  		document.forms[formName2].elements[0].checked = true; 
  }
  
  for (i=0; i < count3; i++) {
  		document.forms[formName3].elements[0].checked = true; 
  }
	
	
}

//window.onload = randomBackground;
//window.onload = unCheck;

window.onload = startUp;