checkUrl = function(file, source, submit, name, email) {
	
	var url = top.location.href;
	var prefix = '';
	var prefix2 = '';
	
	if(url.match('landingpage.nuon.araneum.nl') || url.match('landingspage.nuon.araneum.nl')) {
		var redirect = 'https://installatieservice.consumenten.nuon.com/landingpage/'+file;
		if(source != '') {
			prefix = '/'+source;
		}
		
		if(submit != '') {
			prefix2 = '/'+submit;
		}
		
		if(name != '') {
			prefix3 = '/'+name;
		}
		
		if(email != '') {
			prefix4 = '/'+email;
		}
		
		document.location.href = redirect+prefix+prefix2+prefix3+prefix4;
	}	
	
}