var ajax = new Array();

function getModelSeriesList(sel, current_category_id){
	var prod_id = sel.options[sel.selectedIndex].value;
	
	document.getElementById('hc-modelseries_id').options.length = 0;
	document.getElementById('hc-model_id').options.length = 0;
	if(prod_id.length>0){
		var index = ajax.length;
		ajax[index] = new sack();
		
		ajax[index].requestFile = 'hardcopy.php?hc-prod_id='+prod_id+'&hc-cid='+current_category_id+'&hc-query=cm';
		ajax[index].onCompletion = function(){ createModelSeriesList(index) };
		ajax[index].runAJAX();
	}
}

function createModelSeriesList(index){
	// document.getElementById('hc-modelseries_id').className='selected';
	var obj = document.getElementById('hc-modelseries_id');
	eval(ajax[index].response);
}

function getModelsList(sel, current_category_id){
	var modelseries_id = sel.options[sel.selectedIndex].value;
	
	document.getElementById('hc-model_id').options.length = 0;
	if(modelseries_id.length>0){
		var index = ajax.length;
		ajax[index] = new sack();
		
		ajax[index].requestFile = 'hardcopy.php?hc-modelseries_id='+modelseries_id+'&hc-cid='+current_category_id+'&hc-query=cm';
		ajax[index].onCompletion = function(){ createModelsList(index) };
		ajax[index].runAJAX();
	}
}

function createModelsList(index){
	// document.getElementById('hc-model_id').className='selected';
	var obj = document.getElementById('hc-model_id');
	eval(ajax[index].response);
}