function showSub(id){
	
	if(document.getElementById('cat_'+id).style.display == 'none'){
		
		document.getElementById('cat_'+id).style.display = 'block';
		document.getElementById('img_cat_'+id).src = 'layout/image_arrow_open.jpg';
		
	} else {
		
		document.getElementById('cat_'+id).style.display = 'none';
		document.getElementById('img_cat_'+id).src = 'layout/image_arrow_close.jpg';
		
	}
	
}

function bookmarksite(title,url){

	if(window.sidebar){ // firefox

		window.sidebar.addPanel(title, url, "");

	} else if(window.opera && window.print){ // opera

		var elem = document.createElement('a');
		elem.setAttribute('href',url);
		elem.setAttribute('title',title);
		elem.setAttribute('rel','sidebar');
		elem.click();

	} else if(document.all){ // ie

		window.external.AddFavorite(url, title);

	}
	
}

function updatePrices(products_id){
	
	/*var url = 'matras_updateprice.php';
	
	var container = document.getElementById("select_boxes");
	var selects = container.getElementsByTagName("select");
	var aantal = document.getElementById("quantity_select").value;
	
	var pars = 'aantal='+aantal+'&products_id='+products_id;
	
	for(var i = 0; i < selects.length; i++){ 

		pars += '&'+selects[i].name+'='+selects[i].value;
		
	}
	
    var target = 'price_output';
    var myAjax = new Ajax.Updater(target, url, {method: 'get', parameters: pars});*/
	
	// FUNCTIE MOET NOG AANGEPAST WORDEN NAAR QT PRO
	
}