function SymError()
{
  return true;
}

window.onerror = SymError;

function ResizeDiv() {
	var divheight = screen.height-540;
	document.getElementById('maincontent').style.height=divheight+'px';
}

function toggle(div) {
	var option=['tblok1','tblok2','tblok3','tblok4','tblok5','tblok6','tblok7','tblok8','tblok9','tblok10'];
	for(var i=0; i<option.length; i++) {
	if (document.getElementById(option[i])) {
	obj=document.getElementById(option[i]);
	obj.style.display=(option[i]==div)? "block" : "none";
	}
	}
}

function openLightbox() {
fireEvent(document.getElementById("animatie"),'click');
}

function fireEvent(obj,evt){
var fireOnThis = obj;
if( document.createEvent ) {
var evObj = document.createEvent('MouseEvents');
evObj.initEvent( evt, true, false );
fireOnThis.dispatchEvent(evObj);
} else if( document.createEventObject ) {
fireOnThis.fireEvent('on'+evt);
}
}