function fill_fields(x) {
	var ajax = new Ajax.Updater(
         'mainmenu',        // DIV id (XXX: doesnt work?)
         website_ajax_script_dir + 'fill_merchant_fields.php',        // URL
 	        {                // options
	         method:'post',
	         	postBody:'merchant_id='+x.value,
            	onComplete: showResponse, 
	             });

	function showResponse(req){
		var response = req.responseText;
	}
}

function zoek(){
	location.href= website_url+"/zoeken/"+$('q').value.replace(/[^0-9a-zA-Z]/g, '');
}