document.addEvent('domready', function(){
	
	var laMainNavSearch = document.id('laMainNavSearch'),
		laKeywords = document.id('laKeywords'),
		laKeys = [], 
		laCats = laMainNavSearch.getElements('input[type=checkbox][name^=laCats]');
			
/*	laCats.each(function(el){
		el.addEvent('click', function(){
			if (el.get('checked')) laKeys.include(el.get('value'));
			else laKeys.erase(el.get('value'));
		});
	});
*/	
	laMainNavSearch.getElement('input[type=image]').addEvent('click', function(e){
		var ischecked = laCats.get('checked');
		laCats.each(function(el, i){
			if(ischecked[i]) laKeys.include(encodeURI(el.get('value')).replace(/f%C3%BCr%20/g, ''));
		});
		laKeywords.set('value', decodeURI(laKeys.join(' OR ')));
		//e.stop();
	});
	
	if (Browser.Engine.trident) $$('#lasearch form input:first-child').addClass('first-child');

});