function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function getURL(url) {
	document.location.href=url;
}

function checkinput() {
	var e = document.getElementById("name");
	
	if (e.value == "") {
		alert("用戶名不能為空白,請輸入後再試。");
		return false;
	}
	
	e = document.getElementById("company_name");

	if (e.value == "") {
		alert("公司名稱不能為空白,請輸入後再試。");
		return false;
	}

	e = document.getElementById("email");

	if (e.value == "") {
		alert("請輸入有效的Email地址, 以便我們與你聯絡。");
		return false;
	}
	
	if (! valid_email(e)) {
		alert("無效的Email,請重新輸入再試。");
		return false;
	}		

	e = document.getElementById("shipment");
	e2 = document.getElementById("shipment2");
	
	if (e.value == "" && e2.value == "") {
		alert("用戶聯絡地址不能為空,請輸入有效的聯絡地址。");
		return false;
	}
	
	return true;


}



function popup_window(url, left, top, width, height)
{
  popUpWin = window.open(url, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

function valid_email(e)
{
	var x = e.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	
	return filter.test(x);
}

function valid_telephone(e)
{
	var x = e.value;
	var filter  = /^([0-9\-])+$/;
	
	return filter.test(x);
}

function valid_name(e)
{
	var x = e.value;
	var filter  = /^(\D)+$/;
	
	return filter.test(x);
}