//<![CDDA[
/* 自訂 Javascript 程序 */
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_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_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 sendcardpreviewform() {
	var form = document.getElementById('sendcardinputform');
	var username = form.sender_name.value;
	var useremail = form.sender_email.value;
	var message = form.sender_message.value;
	
	var friends, femail, fchecks, uchecks;
	fchecks = false;
	uchecks = false;
	for(var i=1; i<=5; i++) {
		friends = document.getElementById('friend_name_'+i).value;
		femail =  document.getElementById('friend_email_'+i).value;
		if (checkInputValue(friends) && checkInputValue(femail) && email_check(femail)) fchecks = true;
		if (useremail==femail) uchecks = true;
	}

	if (!checkInputValue(username)) { alert("請填寫您的姓名。"); return false; }
	if (!checkInputValue(useremail) || !email_check(useremail)) { alert("請填寫您的 email（請確認格式正確）。"); return false; }
	if (!checkInputValue(message) || message.length>300) { alert("請填寫您的卡片訊息，訊息字數請在 300 字以內。"); return false; }
	if (uchecks) { alert("你不可以祈願卡寄給自己喔。"); return false; }
	if (!fchecks) { alert("請最少填寫一位朋友的名字與 email。"); return false; }
	
	xajax_emailMXCheck(xajax.getFormValues('sendcardinputform'));	
}

function gonextpreview() {
	var form = document.getElementById('sendcardinputform');
	var username = form.sender_name.value;
	var useremail = form.sender_email.value;
	var message = form.sender_message.value;
	
	document.getElementById('sendcardInput').style.display = 'none';
	document.getElementById('sendcardPreview').style.display = 'block';
	document.getElementById('preview_message').innerHTML = "Dear,<br /><br /><strong>"+message+"</strong><br /><br /><div style=\"text-align:right;\">best regards,<br />"+username+"</div>";
}

function gobackpreview() {
	document.getElementById('sendcardPreview').style.display = 'none';
	document.getElementById('sendcardInput').style.display = 'block';
}

function confirmsendcard() {
	document.getElementById('finalButton').style.display = 'none';
	xajax_sendcarform(xajax.getFormValues('sendcardinputform'));
}
//>