function removeAllOption(_id){
	_select=document.getElementById(_id);
	_options=new Array();
	_options=_select.options;
	for(var i=_options.length-1;i>=0;i--){
		_options[i]=null;
	}
}

function reAdd(_id,_options){
	removeAllOption(_id);
	_select=document.getElementById(_id);
	for(var i=0;i<_options.length;i++){
		_select.options[i]=_options[i];
	}
}

function doPost(url){
	if($('#next_is_shipping')){
		$('#next_is_shipping').attr('disabled',"disabled");
	}
	var _calculator=document.getElementById('calculator');
	$('#price').html("Loading...");
	$('#go').attr('disabled',"disabled");
	var pre_action=_calculator.action;
	_calculator.action=url;
	$('#calculator').ajaxSubmit(
		function(price){
			if(price>0){
				$('#price').html('$'+price);
				$('#go').attr('disabled',"");
				if($('#next_is_shipping')){
					$('#next_is_shipping').attr('disabled',"");
				}
			}else{
				$('#price').html('N/A');
				$('#go').attr('disabled',"disabled");
				if($('#next_is_shipping')){
					$('#next_is_shipping').attr('disabled',"disabled");
				}
			}
		}
	)
	_calculator.action=pre_action;
	
//	_calculator=document.getElementById('calculator');
//	_calculator.target='hc';
//	pre_action=_calculator.action;
//	_calculator.action=url;
//	_calculator.submit();
//	_calculator.target='';
//	_calculator.action=pre_action;
}





/**
 * @author Simon Ye
 */
function select( select_id, turntime_selected )
{
	var turntime_options = select_options( select_id );
	for ( var i=0; i<turntime_options.length; i++ ) 
	{
		if (turntime_options[i].value == turntime_selected)
		{
			turntime_options[i].selected = true;
			break;
		}
	}
}

function selected_value(id)
{
	var el_size=document.getElementById(id);
	return el_size.options[el_size.selectedIndex].value;
}

function select_options( select_id )
{
	var turntime_el =document.getElementById( select_id );
	return turntime_el.options;
}