function yearChange(marka,prodid) {
	if(marka=="") {
		$('jyearsprod').getElements('option').each(function(item){
			if (item.value != '') item.remove();
			else item.selected=true;
		});
		$('jmodel').getElements('option').each(function(item){
			if (item.value != '') item.remove();
			else item.selected=true;
		});
		$('jyearsprod').disabled = true;
		$('jmodel').disabled = true;
		return;
	} else {
		$('jmodel').getElements('option').each(function(item){
			if (item.value != '') item.remove();
			else item.selected=true;
		});
		$('jmodel').disabled = true;
		$('search_vm').innerHTML = '<img src="/modules/mod_awm_coversearch/images/loader_icon.gif" />';
		var url="/modules/mod_awm_coversearch/awm_ajax.php?marka="+marka+"&prodid="+prodid;
	}
	var request = new Json.Remote(url, {
		onComplete: function(results) {
			if (results.indexOf('Not Found') != -1) {
				$('jyearsprod').disabled = true;
				$('jmodel').disabled = true;
				$('search_vm').innerHTML = '';
				return;
			} else {
				$("years_results").innerHTML = results;
				$("years_results").setStyle('display','block');
				$('search_vm').innerHTML = '';
			}
		}
	}).send();	
}
function modelChange(year,prodid) {
	if(year=="" || $('jmarka').value == '') {
		$('jmodel').getElements('option').each(function(item){
			if (item.value != '') item.remove();
			else item.selected=true;
		});
		$('jmodel').disabled = true;
	} else {
		var marka = "&marka="+$('jmarka').value;
		$('search_vm').innerHTML = '<img src="/modules/mod_awm_coversearch/images/loader_icon.gif" />';
		var url="/modules/mod_awm_coversearch/awm_ajax.php?year="+year+marka+"&prodid="+prodid;
	}
	var request = new Json.Remote(url, {
		onComplete: function(results) {
			if (results.indexOf('Not Found') != -1) {
				$('jmodel').disabled = true;
				$('search_vm').innerHTML = '';
				return;
			} else {
				$("model_results").innerHTML = results;
				$("model_results").setStyle('display','block');
				$('search_vm').innerHTML = '';
			}
		}
	}).send();	
}