JavaScript中DOM树的Node接口的一些简单应用
1. 用类名查找元素
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN
" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
" >
<head>
<title>Untitled Page</title>
<script type="text/javascript
">
//本页方法:用类名选择元素
function
getElements(cla) {
var
elements = document
.getElementsByTagName("*
");
var
elems = [];
for
(var
i = 0; i < elements.length
; i++) {
if
(elements[i].className && has(elements[i].className,cla)) {
elems.push(elements[i]);
}
}
return
elems;
}
function
has(ele, name
) {
var
clla = [];
if
(ele) clla = ele.split(' ');
for
(var
i = 0; i < clla.length
; i++)
if
(clla[i] == name
) {return
true
};
return
false
;
}
</script>
<style type="text/css
">
.h
{background-color:Aqua;
}
</style>
</head>
<body>
<i id="iiii
" class
="h
">Just test.</i><br />
<span id="ssss
" class
="h
">hehe</span>
<script type="text/javascript
">
var
e = getElements("h
");
var
nn = ""
for
(var
i = 0; i < e.length
; i++) {
nn +="id:
" + e[i].id + "\n
";
nn += "------line------\n
";
}
alert
(nn);
</script>
</body>
</html>
<
script
>
// This function takes a Node n, replaces it in the tree with an Element node
// that represents an HTML <
b
>
tag, and then makes the original node the
// child of the new <
b
>
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keycode 12 = Clear
keycode 13 = Enter
keycode 16 = Shift_L
keycode 17 = Control_L
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<html>
<mce:script type="text/javascript"><!--
function checkedAll(checked)
{
var ckbArray=document.getElementsByName('ckb');
for(var i=0,len=ckbArray.length;i<len;i++)
{
ckbArray[i].checked=checked;
}
}
function clickbutton()
{
var ckbArra ......
自定义一个log函数,输出传入函数的对象或者信息.
Log.js
// JScript source code
function
log(category, message, object) {
// If this category is explicitly disabled, do nothing
if
(log.options[category + "Disabled
"]) return
;
// Find the container
var
id = categ ......
