section="dummy";
if(document.images){
	
		ga_off = new Image();
		ga_off.src = "/images/button_ga_off.gif";
		ga_on = new Image();
		ga_on.src = "/images/button_ga_on.gif";
				
}

function imageOn(image)
{
        if (document.images)
        {
                imgOn = eval(image + "_on.src");
                document [image].src = imgOn;
        }
}

function imageOff(image)
{
        if (document.images)/*&& section != image*/
        {
                imgOff = eval(image + "_off.src");
                document [image].src = imgOff;
        }
}    

		
		function goback(){
			browser = navigator.appName
			if (browser.indexOf("etscape") > 0 ) explorer = false
			else explorer = true
			
			if (explorer) {
				history.back()
			}	
			else {
				window.back()
			}
		}
		
		var disclaimerWindow
	function showDisclaimerWindow() {
		if (!disclaimerWindow || disclaimerWindow.closed) {
			disclaimerWindow = window.open('/disclaimer.asp','','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,noresize,resizable=0,width=400,height=500,left=0,top=0'); 
			if (!disclaimerWindow.opener) {
			disclaimerWindow.opener = window
			} 
		} else {
			disclaimerWindow.location.href = url
			disclaimerWindow.focus()
		}
	}	
	
	
/* ------------- formulieren -------------- */

function checkFormBrochure() {
	if(!document.forms['form_brochure'].naam.value) {
		alert('U bent vergeten om uw naam in te vullen');
		return false;
	}
	if(!document.forms['form_brochure'].adres.value) {
		alert('U bent vergeten om uw adres in te vullen');
		return false;
	}
	if(!document.forms['form_brochure'].postcode.value) {
		alert('U bent vergeten om uw postcode in te vullen');
		return false;
	}
	if(!document.forms['form_brochure'].plaats.value) {
		alert('U bent vergeten om uw plaats in te vullen');
		return false;
	}
	else {return true;}

}