<!--
function verifyNewTopic(){
	var f = document.forum_nt;
	var errStr = "";
	var isErr = false;
	
	if(f.title.value == ''){
		errStr += '您必須輸入標題。\n';
		isErr = true;
	}
	if(f.msg.value == ''){
		errStr += '您必須輸入內容。\n';
		isErr = true;
	}

	if(isErr){
		alert(errStr);
		return false;
	}
}

function verifyReplyTopic(){
	var f = document.forum_rt;
	var errStr = "";
	var isErr = false;
	
	if(f.msg.value == ''){
		errStr += '您必須輸入內容。\n';
		isErr = true;
	}

	if(isErr){
		alert(errStr);
		return false;
	}
}

function appendText(txt) {
	var targetField;
	if (document.getElementById('msg') && document.getElementById('msg').type == 'textarea') {
		targetField = document.getElementById('msg');
	} else {
		return false;
	}
	if (document.selection) {
		targetField.focus();
		sel = document.selection.createRange();
		sel.text = txt;
		targetField.focus();
	}
	else if (targetField.selectionStart || targetField.selectionStart == '0') {
		var startPos = targetField.selectionStart;
		var endPos = targetField.selectionEnd;
		var cursorPos = endPos;
		targetField.value = targetField.value.substring(0, startPos)
					  + txt
					  + targetField.value.substring(endPos, targetField.value.length);
		cursorPos += txt.length;
		targetField.focus();
		targetField.selectionStart = cursorPos;
		targetField.selectionEnd = cursorPos;
	}
	else {
		targetField.value += txt;
		targetField.focus();
	}
}
function getImageLink(){
	imglink = '[img]' + prompt('請輸入圖片連結:', '') + '[/img]';
	appendText(imglink);
}
function getUrl(){
	url = '[url]' + prompt('請輸入連結:', '') + '[/url]';
	appendText(url);
}
//-->