问从下拉列表中保存

EN

    var m = new Array("standard","premium","executive","presidential");//mania hotel 
var mp= new Array(17000,25000,38000,52000);

    if(n == 0)
{
    document.res.root.options.length = 0;
    for(var i=0; i<m.length; i++)
    {
        var o = new Option(m[i], mp[i] );
        document.res.root.options[i] = o;
    }
}

    function getPrice(){
    var guests = parseInt(document.res.Guest.value); 
    guests = 1;

    var price = (guests * 5) + (days * hotel);