function SymError()
{
  return true;
}

window.onerror = SymError;

pathname = "/"

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];}}
}
MM_preloadImages()

function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

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_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 nav(item) 
{
	
	var file_name = top.content.window.location.pathname;        
    var end = (file_name.indexOf("?") == -1) ? file_name.length : file_name.indexOf("?");

	file = file_name.substring(file_name.lastIndexOf("/")+1, end);	
		
	
	if (item == 'home' || file == "welkom.php")
	{
		MM_swapImage('home','','img/nav/home_on.gif',1)
	} 
	else
	{
		MM_swapImage('home','','img/nav/home_off.gif',1)
	}
	
	if (item == 'algemene-info' || file == "algemene-info.php")
	{
		MM_swapImage('algemene-info','','img/nav/algemene-info_on.gif',1)
	} 
	else 
	{
		MM_swapImage('algemene-info','','img/nav/algemene-info_off.gif',1)
	}
	
	if(item == 'voorstellingen' || file == "voorstellingen.php" || file == "voorstelling.php")
	{
		MM_swapImage('voorstellingen','','img/nav/voorstellingen_on.gif',1)
	} 
	else 
	{
		MM_swapImage('voorstellingen','','img/nav/voorstellingen_off.gif',1)
	}

	if(item == 'beeldengeluid' || file == "beeld_en_geluid.php" || file == "beeld_en_geluid.php")
	{
		MM_swapImage('beeldengeluid','','img/nav/beeldengeluid_on.gif',1)
	} 
	else 
	{
		MM_swapImage('voorstellingen','','img/nav/voorstellingen_off.gif',1)
	}


	if (item == 'nieuws' || file == "nieuws.php" || file == "speelmail.php")
	{
		MM_swapImage('nieuws','','img/nav/nieuws_on.gif',1)
	} 
	else
	{
		MM_swapImage('nieuws','','img/nav/nieuws_off.gif',1)
	}
	
	if(item == 'over-tspeelhuis' || file == "over-tspeelhuis.php")
	{
		MM_swapImage('over-tspeelhuis','','img/nav/over-tspeelhuis_on.gif',1)
	} 
	else 
	{
		MM_swapImage('over-tspeelhuis','','img/nav/over-tspeelhuis_off.gif',1)
	}
	
	if (item == 'evenementen-en-verhuur' || file == "evenementen-en-verhuur.php")
	{
		MM_swapImage('evenementen-en-verhuur','','img/nav/evenementen-en-verhuur_on.gif',1)
	} 
	else 
	{
		MM_swapImage('evenementen-en-verhuur','','img/nav/evenementen-en-verhuur_off.gif',1)
	}
	
	if(item == 'overdescala' || file == "overdescala.php")
	{
		MM_swapImage('overdescala','','img/nav/overdescala_on.gif',1)
	} 
	else 
	{
		MM_swapImage('overdescala','','img/nav/overdescala_off.gif',1) 
	}	
	
	if (item == 'mijnspeelhuis')
	{
		MM_swapImage('mijnspeelhuis','','img/nav/mijnspeelhuis_on.gif',1)
	} 
	else 
	{
		MM_swapImage('mijnspeelhuis','','img/nav/mijnspeelhuis_off.gif',1) 
	}
	
	if (item == 'contact' || file == "algemene-info.php")
	{
		MM_swapImage('contact','','img/nav/contact_on.gif',1)
	} 
	else 
	{
		MM_swapImage('contact','','img/nav/contact_off.gif',1)
	}
	
	toggle_search();
}

function nav2(item) {

		var file_name = top.content.window.location.pathname;        
        var end = (file_name.indexOf("?") == -1) ? file_name.length : file_name.indexOf("?");

		file = file_name.substring(file_name.lastIndexOf("/")+1, end);	
		
		if(file != "content.php") 
		{
			MM_swapImage('home','','img/nav/home_off.gif',1)
		}
		
		if(file != "algemene-info.php")
		{
			MM_swapImage('algemene-info','','img/nav/algemene-info_off.gif',1)
		}
		else
		{
			MM_swapImage('algemene-info','','img/nav/algemene-info_on.gif',1)
		}
		
		if(file != "voorstellingen.php" && file != "voorstelling.php")
		{
			MM_swapImage('voorstellingen','','img/nav/voorstellingen_off.gif',1)
		}
		else
		{
			MM_swapImage('voorstellingen','','img/nav/voorstellingen_on.gif',1)
		}

		if(file != "beeld_en_geluid.php")
		{
			MM_swapImage('beeldengeluid','','img/nav/beeldengeluid_off.gif',1)
		}
		else
		{
			MM_swapImage('voorstellingen','','img/nav/voorstellingen_on.gif',1)
		}

		if(file != "nieuws.php" && file != "speelmail.php")
		{
			MM_swapImage('nieuws','','img/nav/nieuws_off.gif',1)
		}
		else
		{
			MM_swapImage('nieuws','','img/nav/nieuws_on.gif',1)
		}
		
		if(file != "over-tspeelhuis.php")
		{
			MM_swapImage('over-tspeelhuis','','img/nav/over-tspeelhuis_off.gif',1)
		}
		else
		{
			MM_swapImage('over-tspeelhuis','','img/nav/over-tspeelhuis_on.gif',1)
		}
		
		if(file != "overdescala.php")
		{
			MM_swapImage('overdescala','','img/nav/overdescala_off.gif',1)
		}
		else
		{
			MM_swapImage('overdescala','','img/nav/overdescala_on.gif',1)
		}	
		
		if(file != "evenementen-en-verhuur.php")
		{
			MM_swapImage('evenementen-en-verhuur','','img/nav/evenementen-en-verhuur_off.gif',1)
		}
		else
		{
			MM_swapImage('evenementen-en-verhuur','','img/nav/evenementen-en-verhuur_on.gif',1)
		}
		
		if(file != "reserveren.php")
		{
			MM_swapImage('reserveren','','img/nav/mijnspeelhuis_off.gif',1)
		}
		else
		{
			MM_swapImage('reserveren','','img/nav/mijnspeelhuis_on.gif',1)
		}
		
		if(file != "algemene-info.php")
		{
			MM_swapImage('contact','','img/nav/contact_off.gif',1)
		}
		else
		{
			MM_swapImage('contact','','img/nav/contact_on.gif',1)
		}
}

//Ajax Functies

function clear_sub() {
	
	document.getElementById('sub_cat').innerHTML = '';
}

function xmlhttpPost(strURL,vars,target) {
    
    var xmlHttpReq = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
    } 
    self.xmlHttpReq.open('POST', strURL, true);
    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq.onreadystatechange = function() {        
        if (self.xmlHttpReq.readyState == 1)
        { 
        	parent.window.document.getElementById(target).innerHTML = '<span style="padding-left: 90px;"><img src="img/loading.gif"></span>';	        
        }
        if (self.xmlHttpReq.readyState == 4)
        {               
            parent.window.document.getElementById(target).innerHTML = self.xmlHttpReq.responseText;          	    
        }
    }
    self.xmlHttpReq.send(vars);
    
}

function tekst_blok(strURL,vars,target) {
    
    var xmlHttpReq3 = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq3 = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq3 = new ActiveXObject("Microsoft.XMLHTTP");
    }    
    self.xmlHttpReq3.open('POST', strURL, true);
    self.xmlHttpReq3.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq3.onreadystatechange = function() {        
        if (self.xmlHttpReq3.readyState == 1)
        { 
        	parent.window.document.getElementById(target).innerHTML = 'Loading...';	
        }
        if (self.xmlHttpReq3.readyState == 4)
        {            
            parent.window.document.getElementById(target).innerHTML = self.xmlHttpReq3.responseText;
        }
    }
    self.xmlHttpReq3.send(vars);
}

function load_cart(strURL,vars,target) {
    
    var xmlHttpReq4 = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq4 = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq4 = new ActiveXObject("Microsoft.XMLHTTP");
    }    
    self.xmlHttpReq4.open('POST', strURL, true);
    self.xmlHttpReq4.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq4.onreadystatechange = function() {        
        if (self.xmlHttpReq4.readyState == 1) 
        { 
        	parent.window.document.getElementById(target).innerHTML = 'Loading...';	
        }
        if (self.xmlHttpReq4.readyState == 4) 
        {            
            parent.window.document.getElementById(target).innerHTML = self.xmlHttpReq4.responseText;
        }
    }
    self.xmlHttpReq4.send(vars);
}

function toggle_search() {
	
		var file_name = top.content.window.location.pathname;        
        var end = (file_name.indexOf("?") == -1) ? file_name.length : file_name.indexOf("?");

		file = file_name.substring(file_name.lastIndexOf("/")+1, end);
				
		if(file == "voorstellingen.php" ||file == "voorstelling.php")	
		{
			parent.window.document.getElementById('search').style.display = 'block';
		}
		else
		{
			parent.window.document.getElementById('search').style.display = 'none';
		}
	
}

function jump(targ,selObj,restore)
{
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function jump2()
{  
  genre = document.getElementById('genre').value;
  maand = document.getElementById('maand').value;
  eval("content.location.href='voorstellingen.php?discipline=' + genre + '&maand=' + maand + '&x=y'");
}

function grow()
{
	document.getElementById('content_middle').style.width='699px';
	document.getElementById('content_frame').style.width='611px';
	document.getElementById('content_middle').style.background='url("img/blok_grijs.png") repeat-y right #5a0055';
}

function shrink()
{
	document.getElementById('content_middle').style.width='427px';
	document.getElementById('content_frame').style.width='427px';
	document.getElementById('content_middle').style.background='';
}

function ResizeIFrame() 
{
	
	if(window.innerHeight)
	{
		//Non-IE
		h = window.innerHeight-316;
	}
	else
	{	
		h=screen.availHeight-316;
	}
	
	if(document.getElementById && !(document.all))
	{
		document.getElementById('content_frame').style.height = h;
	}
	else if(document.all)
	{
		
		document.all.content_frame.style.height = h;
	}
}