function mainmenu(){
$(" #nav ul ").css({display: "none"}); // Opera Fix
$(" #nav li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(400);
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}

 
 
$(document).ready(function(){					
	mainmenu();

  $('div.nieuws> div').hide();  
  $('div.nieuws> h3').click(function() {
    $(this).next('div').slideToggle('fast')
    .siblings('div:visible').slideUp('fast');
  });


});

//=====================================================================
		
PositionX = 10;
PositionY = 10;
defaultWidth  = 500;
defaultHeight = 500;	
var AutoClose = true;
// ================================
if (parseInt(navigator.appVersion.charAt(0))>=4){
	var isNN=(navigator.appName=="Netscape")?1:0;
	var isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;
}
var optNN='scrollbars=no,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY;
var optIE='scrollbars=no,width=150,height=100,left='+PositionX+',top='+PositionY;
function popImage(imageURL,imageTitle){
	if (isNN){imgWin=window.open('about:blank','',optNN);}
	if (isIE){imgWin=window.open('about:blank','',optIE);}
	with (imgWin.document){
		writeln('<html><head><title>Loading...</title><style>body{margin:0px;}</style>');writeln('<sc'+'ript>');
		writeln('var isNN,isIE;');writeln('if (parseInt(navigator.appVersion.charAt(0))>=4){');
		writeln('isNN=(navigator.appName=="Netscape")?1:0;');writeln('isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;}');
		writeln('function reSizeToImage(){');writeln('if (isIE){');writeln('window.resizeTo(240,100);');
		writeln('width=240-(document.body.clientWidth-document.images[0].width);');
		writeln('height=100-(document.body.clientHeight-document.images[0].height);');
		writeln('window.resizeTo(width,height);}');writeln('if (isNN){');       
		writeln('window.innerWidth=document.images["George"].width;');writeln('window.innerHeight=document.images["George"].height;}}');
		writeln('function doTitle(){document.title="'+imageTitle+'";}');writeln('</sc'+'ript>');
		if (!AutoClose) writeln('</head><body bgcolor=000000 scroll="no" onload="reSizeToImage();doTitle();self.focus()">')
		else writeln('</head><body bgcolor=000000 scroll="no" onload="reSizeToImage();doTitle();self.focus()" onblur="self.close()">');
		writeln('<img name="George" src='+imageURL+' style="display:block"></body></html>');
		close();		
	}
}

function emailvalidation(entered,alertbox) {
	emailpat = /^([a-zA-Z0-9])+([\.a-zA-Z0-9_-])*@([a-zA-Z0-9])+(\.[a-zA-Z0-9_-]+)+$/;
	with (entered) {
		if( !emailpat.test(value) ) {
			if (alertbox) {alert('Het ingevoerde email adres is ongeldig.');}
			return false;			
		} else {
			return true; 
		}
	}
}