function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function delegate(obj, func)
{
    var f = function()
    {
        var target = arguments.callee.target;
        var func = arguments.callee.func;

        return func.apply(target, arguments);
    };
    
    f.target = obj;
    f.func = func;

    return f;
}

function validateForm(elem_ids, elem_names){
    for(var i=0; i<elem_ids.length; i++)
    {
        var elem = document.getElementById(elem_ids[i]);
        var elem_name = elem_names[i];

        if(elem.type=="text" || elem.type=="password")
        {
            if(elem.value=="")
            {
                alert("請填寫" + elem_name);
                elem.focus();
                return false;
            }
        }
        else if(elem.type=="select-one")
        {
            if(elem.selectedIndex==-1 || elem.options[elem.selectedIndex].value=="")
            {
                alert("請選擇" + elem_name);
                elem.focus();
                return false;
            }
        }
        else
        {
            alert("not implement this Input Type: " + elem.type)
        }
    }
    return true;
}