JS
网页特效库 http://www.butong.net/
Tmp=Str.substr(0,1);#去掉字符串的第1位document.all.ProcessName[j].focus();#设置焦点
document.all.ProcessName[j].select(); #选定文本域
input value=删除span type=button onclick="a.removeNode(1)"> #删除指定ID的 HTML 标签
让层位置固定不随滚动条拖动：http://bbs.51js.com/viewthread.php?tid=62615
淘宝的，网页滚动到哪儿，图片显示到哪儿：http://bbs.51js.com/viewthread.php?tid=85994
js延迟加载图片：http://code.google.com/p/kissy/wiki/ImageLazyLoad
键盘事件全面控制
代码
<HTML>
<HEAD>
<TITLE>Keyboard Event Handler Lab</TITLE>
<STYLE TYPE="text/css">
TD {text-align:center}
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
function init() {
document.onkeydown = showKeyDown
document.onkeyup = showKeyUp
document.onkeypress = showKeyPress
}
function showKeyDown(evt) {
evt = (evt) ? evt : window.event
document.getElementById("pressKeyCode").innerHTML = 0
document.getElementById("upKeyCode").innerHTML = 0
document.getElementById("pressCharCode").innerHTML = 0
document.getElementById("upCharCode").innerHTML = 0
restoreModifiers("")
restoreModifiers("Down")
restoreModifiers("Up")
document.getElementById("downKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("downCharCode").innerHTML = evt.charCode
}
showModifiers("Down", evt)
}
function showKeyUp(evt) {
evt = (evt) ? evt : window.event
document.getElementById("upKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("upCharCode").innerHTML = evt.charCode
}
showModifiers("Up", evt)
return false
}
function showKeyPress(evt) {
evt = (evt) ? evt : window.event
document.getElementById("pressKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("pressCharCode").innerHTML = evt.charCode
}
showModifiers("", evt)
return false
}
function showModifiers(ext, evt) {
restoreModifiers(ext)
if (evt.shiftKey) {
document.getElementById("shift" + ext).style.backgroundColor = "#ff0000"
}
if (evt.ctrlKey) {
document.getElementById("ctrl" + ext).style.backgroundColor = "#00ff00"
}
if (evt.altKey) {
document.getElementById("alt" + ext).style.backgroundColor = "#0000ff"
}
}
function restoreModifiers(ext) {
document.getElementById("shift" + ext).style.backgroundColor = "#ffffff"
document.getElementById("ctrl" + ext).style.backgroundColor = "#ffffff"
document.getElementById("alt" + ext).style.backgroundColor = "#ffffff"
}
</SCRIPT>
</HEAD>
<BODY onLoad="init()">
<H1>Keyboard Event Handler Lab</H1>
<HR>
<FORM>
<TABLE BORDER=2 CELLPADDING=2>
<TR><TH></TH><TH>onKeyDown</TH><TH>onKeyPress</TH><TH>onKeyUp</TH></TR>
<TR><TH>Key Codes</TH>
<TD ID="downKeyCode">0</TD>
<TD ID="pressKeyCode">0</TD>
<TD ID="upKeyCode">0</TD>
</TR>
<TR><TH>Char Codes (IE5/Mac; NN6)</TH>
<TD ID="downCharCode">0</TD>
<TD ID="pressCharCode">0</TD>
<TD ID="upCharCode">0</TD>
</TR>
<TR><TH ROWSPAN=3>Modifier Keys</TH>
<TD><SPAN ID="shiftDown">Shift</SPAN></TD>
<TD><SPAN ID="shift">Shift</SPAN></TD>
<TD><SPAN ID="shiftUp">Shift</SPAN></TD>
</TR>
<TR>
<TD><SPAN ID="ctrlDown">Ctrl</SPAN></TD>
<TD><SPAN ID="ctrl">Ctrl</SPAN></TD>
<TD><SPAN ID="ctrlUp">Ctrl</SPAN></TD>
</TR>
<TR>
<TD><SPAN ID="altDown">Alt</SPAN></TD>
<TD><SPAN ID="alt">Alt</SPAN></TD>
<TD><SPAN ID="altUp">Alt</SPAN></TD>
</TR>
</TABLE>
</FORM>
</BODY>
</HTML>
<HEAD>
<TITLE>Keyboard Event Handler Lab</TITLE>
<STYLE TYPE="text/css">
TD {text-align:center}
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
function init() {
document.onkeydown = showKeyDown
document.onkeyup = showKeyUp
document.onkeypress = showKeyPress
}
function showKeyDown(evt) {
evt = (evt) ? evt : window.event
document.getElementById("pressKeyCode").innerHTML = 0
document.getElementById("upKeyCode").innerHTML = 0
document.getElementById("pressCharCode").innerHTML = 0
document.getElementById("upCharCode").innerHTML = 0
restoreModifiers("")
restoreModifiers("Down")
restoreModifiers("Up")
document.getElementById("downKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("downCharCode").innerHTML = evt.charCode
}
showModifiers("Down", evt)
}
function showKeyUp(evt) {
evt = (evt) ? evt : window.event
document.getElementById("upKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("upCharCode").innerHTML = evt.charCode
}
showModifiers("Up", evt)
return false
}
function showKeyPress(evt) {
evt = (evt) ? evt : window.event
document.getElementById("pressKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("pressCharCode").innerHTML = evt.charCode
}
showModifiers("", evt)
return false
}
function showModifiers(ext, evt) {
restoreModifiers(ext)
if (evt.shiftKey) {
document.getElementById("shift" + ext).style.backgroundColor = "#ff0000"
}
if (evt.ctrlKey) {
document.getElementById("ctrl" + ext).style.backgroundColor = "#00ff00"
}
if (evt.altKey) {
document.getElementById("alt" + ext).style.backgroundColor = "#0000ff"
}
}
function restoreModifiers(ext) {
document.getElementById("shift" + ext).style.backgroundColor = "#ffffff"
document.getElementById("ctrl" + ext).style.backgroundColor = "#ffffff"
document.getElementById("alt" + ext).style.backgroundColor = "#ffffff"
}
</SCRIPT>
</HEAD>
<BODY onLoad="init()">
<H1>Keyboard Event Handler Lab</H1>
<HR>
<FORM>
<TABLE BORDER=2 CELLPADDING=2>
<TR><TH></TH><TH>onKeyDown</TH><TH>onKeyPress</TH><TH>onKeyUp</TH></TR>
<TR><TH>Key Codes</TH>
<TD ID="downKeyCode">0</TD>
<TD ID="pressKeyCode">0</TD>
<TD ID="upKeyCode">0</TD>
</TR>
<TR><TH>Char Codes (IE5/Mac; NN6)</TH>
<TD ID="downCharCode">0</TD>
<TD ID="pressCharCode">0</TD>
<TD ID="upCharCode">0</TD>
</TR>
<TR><TH ROWSPAN=3>Modifier Keys</TH>
<TD><SPAN ID="shiftDown">Shift</SPAN></TD>
<TD><SPAN ID="shift">Shift</SPAN></TD>
<TD><SPAN ID="shiftUp">Shift</SPAN></TD>
</TR>
<TR>
<TD><SPAN ID="ctrlDown">Ctrl</SPAN></TD>
<TD><SPAN ID="ctrl">Ctrl</SPAN></TD>
<TD><SPAN ID="ctrlUp">Ctrl</SPAN></TD>
</TR>
<TR>
<TD><SPAN ID="altDown">Alt</SPAN></TD>
<TD><SPAN ID="alt">Alt</SPAN></TD>
<TD><SPAN ID="altUp">Alt</SPAN></TD>
</TR>
</TABLE>
</FORM>
</BODY>
</HTML>
添加与删除Option对象
代码
<html>
<head>
<title>添加与删除Option对象</title>
<script language="JavaScript">
// 添加选项
function addOption(pos){
var objSelect = document.myForm.mySelect;
// 取得字段值
var strName = document.myForm.myOptionName.value;
var strValue = document.myForm.myOptionValue.value;
// 建立Option对象
var objOption = new Option(strName,strValue);
if (pos == -1 & pos > objSelect.options.length)
objSelect.options[objSelect.options.length] = objOption;
else
objSelect.add(objOption, pos);
}
// 删除选项
function deleteOption(type){
var objSelect = document.myForm.mySelect;
if (type == true)
objSelect.options[objSelect.selectedIndex] = null;
else
objSelect.remove(objSelect.selectedIndex);
}
// 显示选项信息
function showOption(objForm){
var objSelect = objForm.mySelect;
var name = objSelect.options[objSelect.selectedIndex].text;
var value = objSelect.options[objSelect.selectedIndex].value;
alert(name + " = " + value);
}
</script>
</head>
<body>
<h2>添加与删除Option对象</h2>
<hr>
<form name="myForm">
<select name="mySelect">
<option value="中国" Selected>中国</option>
<option value="日本">日本</option>
<option value="美国">美国</option>
</select>
<input type="button" onclick="showOption(this.form)" value="显示">
<input type="button" onclick="deleteOption(true)" value="删除">
<input type="button" onclick="deleteOption(false)" value="Remove方法"><br><br>
选项名称 : <input type="text" name="myOptionName" value="英国"><br>
选项的值 : <input type="text" name="myOptionValue" value="value4">
<input type="button" onclick="addOption(-1)" value="添加">
<input type="button" onclick="addOption(0)" value="插入">
</form>
</body>
</html>
<head>
<title>添加与删除Option对象</title>
<script language="JavaScript">
// 添加选项
function addOption(pos){
var objSelect = document.myForm.mySelect;
// 取得字段值
var strName = document.myForm.myOptionName.value;
var strValue = document.myForm.myOptionValue.value;
// 建立Option对象
var objOption = new Option(strName,strValue);
if (pos == -1 & pos > objSelect.options.length)
objSelect.options[objSelect.options.length] = objOption;
else
objSelect.add(objOption, pos);
}
// 删除选项
function deleteOption(type){
var objSelect = document.myForm.mySelect;
if (type == true)
objSelect.options[objSelect.selectedIndex] = null;
else
objSelect.remove(objSelect.selectedIndex);
}
// 显示选项信息
function showOption(objForm){
var objSelect = objForm.mySelect;
var name = objSelect.options[objSelect.selectedIndex].text;
var value = objSelect.options[objSelect.selectedIndex].value;
alert(name + " = " + value);
}
</script>
</head>
<body>
<h2>添加与删除Option对象</h2>
<hr>
<form name="myForm">
<select name="mySelect">
<option value="中国" Selected>中国</option>
<option value="日本">日本</option>
<option value="美国">美国</option>
</select>
<input type="button" onclick="showOption(this.form)" value="显示">
<input type="button" onclick="deleteOption(true)" value="删除">
<input type="button" onclick="deleteOption(false)" value="Remove方法"><br><br>
选项名称 : <input type="text" name="myOptionName" value="英国"><br>
选项的值 : <input type="text" name="myOptionValue" value="value4">
<input type="button" onclick="addOption(-1)" value="添加">
<input type="button" onclick="addOption(0)" value="插入">
</form>
</body>
</html>
