window.addEvent('domready', function() {
	$$('#subNavigatie li, .dropdown').addEvent('mouseover', function(event) {
         $(this).addClass('hover');
    });
	
	$$('#subNavigatie li, .dropdown').addEvent('mouseleave', function(event) {
         $(this).removeClass('hover');
    });
	
	$$('.home_kolom').addEvent('mouseover', function(event) {
         highlight = $(this).getProperty('id');
		 highlight = highlight.substr(highlight.length-1,highlight.length);

		 deClass = $('button_'+highlight).getProperty('class');
		 deClass = deClass.substr(12, deClass.length);
		 $('button_'+highlight).addClass('button_'+deClass);
    });
	
	$$('.home_kolom').addEvent('mouseout', function(event) {
       for(var i=1; i<=5;i++)
	   {
			$('button_'+i).removeClass('button_rood');
   			$('button_'+i).removeClass('button_groen');
			$('button_'+i).removeClass('button_blauw');
   			$('button_'+i).removeClass('button_geel');
			$('button_'+i).removeClass('button_oranje');
	   }
    });
	
	/*
	if ($('inhoud_relevante_links')){
		var size1 = $('inhoud_holder').getSize();
		var size2 = $('inhoud_relevante_links').getSize();
		alert("size1="+size1.y+" - size2="+size2.y)
		if ((size2.y-60) > size1.y) {
			$('inhoud_holder').setStyle('height', (size2.y)+60);
		}
	}*/
});

function checkZip(foutmelding) 
{ 
	//document.frmRoute.txtPostcode.value = document.forms[0].postcode.value.toUpperCase(); 
	//rExp = /^(d{4}[a-zA-Z][a-zA-Z])$/; 
	postcode = document.getElementById('txtPostcode').value.toUpperCase().split(' ').join('');
	
	rExp = /^[0-9]{4}[A-Z]{2}$/;
	OK = rExp.exec(postcode); 
	if (!OK) 
	{ 
		alert(foutmelding); 
		return false; 
	}	
	return true;	
}