function check() {
var err = 0;
var errmsg = "";
if (document.getElementById("myForm").name.value == "") {errmsg = "請填寫姓名\n"; err =1;}
if (document.getElementById("myForm").comment.value == "") {errmsg += "請輸入留言內容"; err =1;}
else if (document.getElementById("myForm").comment.value.length >= 2000) {errmsg += "你的留言內容太長了。留言內容不可超過 2000 個字元！"; err =1;}
if (err) {alert(errmsg); return false;}
if (document.getElementById("myForm").pass.value == "") {if (!confirm("如果不填寫密碼欄，你將失去修改及刪除留言的權利\n\n按 [確定] 送出留言\n按 [取消] 填寫密碼")) {return false;}}
document.getElementById("myForm").gogo.disabled = true;
document.getElementById("myForm").submit();}
function openNewWindow(window, name, left, top, width, height) {
open (window, name,"left="+left+", top="+top+", toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, width="+width+", height="+height+"");
}
function iconchange(){
if (document.getElementById("myForm").icon.value=="0"){document.getElementById("face").src="icon/ran.php";}
else if (document.getElementById("myForm").icon.value=="100"){document.getElementById("face").src="icon/hugologo3.gif";}
else {document.getElementById("face").src="icon/guestball"+document.getElementById("myForm").icon.value+".gif";}
}
function addchar(ch){
if (document.all && window.parent.mode == "html"){
	if (window.parent.frames.html_area.document.body.createTextRange){
		window.parent.frames.html_area.document.body.focus();
		window.parent.document.selection.createRange().duplicate().text=ch;
	} else {
		window.parent.frames.html_area.document.body.innerHTML+=ch;
	}
} else if (window.parent.document.getElementById("myForm").comment.createTextRange){
	window.parent.document.getElementById("myForm").comment.focus();
	window.parent.document.selection.createRange().duplicate().text=ch;
} else {
	window.parent.document.getElementById("myForm").comment.value+=ch;
}
window.parent.document.getElementById("myForm").comment.focus();
}
function file_up() {
if (document.getElementById("file_up").style.display == "block") {document.getElementById("file_up").style.display = "none"}
else {document.getElementById("file_up").style.display = "block"}
}
function ctlent(event) {if((event.ctrlKey && event.keyCode == 13) || (event.altKey && event.keyCode == 83) && ("postsubmit")) {check();}}

function cookies_true() {if(confirm("真的要清除留言板 cookies 嗎?")){location.href = "index.php?mode=cookies_clear";}}