48、跑马灯
<html>
<head>
<script language="JavaScript">
<!-- Hide
var scrtxt="怎麽样 ! 很酷吧 ! 您也可以试试."+"Here goes your message the visitors to your
page will "+"look at for hours in pure fascination...";
var lentxt=scrtxt.length;
var width=100;
var pos=1-width;
function scroll() {
pos++;
var scroller="";
if (pos==lentxt) {
pos=1-width;
}
if (pos<0) {
for (var i=1; i<=Math.abs(pos); i++) {
scroller=scroller+" ";}
scroller=scroller+scrtxt.substring(0,width-i+1);
}
else {
scroller=scroller+scrtxt.substring(pos,width+pos);
}
window.status = scroller;
setTimeout("scroll()",150);
}
//-->
</script>
</head>
<body onLoad="scroll();return true;">
这里可显示您的网页 !
</body>
</html>
49、在网页中用按钮来控制前页，后页和主页的显示。
<html>
<body>
<FORM NAME="buttonbar">
<INPUT TYPE="button" VALUE="Back" onClick="history.back()">
<INPUT TYPE="button" VALUE="JS- Home" onClick="location='script.html'">
<INPUT TYPE="button" VALUE="Next" onCLick="history.forward()">
</FORM>
</body>
</html>
50、查看某网址的源代码
把如下代码加入<body>区域中
<SCRIPT>
function add()
{
var ress=document.forms[0].luxiaoqing.value
window.location="view-source:"+ress;
}
</SCRIPT>
输入要查看源代码的URL地址:
<FORM><input type="text" name="luxiaoqing" size=40 value=""></FORM>
<FORM><br>
<INPUT type="button" value="查看源代码" onClick=add()>
</FORM>
51、title显示日期
把如下代码加入<body>区域中:
<script language="JavaScript1.2">
<!--hide
var isnMonth = new
Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");
var isnDay = new
Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六","星期日");
today = new Date () ;
Year=today.getYear();
Date=today.getDate();
if (document.all)
document.title="今天是: "+Year+"年"+isnMonth[today.getMonth()]+Date+"日"+isnDay[today.getDay()]
//--hide-->
</script>
52、显示所有链接
把如下代码加入<body>区域中
<script language="JavaScript1.2">
<!--
function extractlinks(){
var links=document.all.tags("A")
var total=links.length
var win2=window.open("","","menubar,scrollbars,toolbar")
win2.***("<font size='2'>一共有"+total+"个连接</font><br>")
for (i=0;i<total;i++){
win2.***("<font size='2'>"+links[i].outerHTML+"</font><br>")
}
}
//-->
</script>
<input type="button" onClick="extractlinks()" value="显示所有的连接">
53、回车键换行
把如下代码加入<body>区域中
<script type="text/javascript">
function handleEnter (field, event) {
var keyCode = event.keyCode ? event.keyCode : event.which ?
event.which : event.charCode;
if (keyCode == 13) {
var i;
for (i = 0; i < field.form.elements.length; i++)
if (field == field.form.elements[i])
break;
i = (i + 1) % field.form.elements.length;
field.form.elements[i].focus();
return false;
}
else
return true;
}
</script>
<form>
<input type="text" onkeypress="return handleEnter(this, event)"><br>
<input type="text" onkeypress="return handleEnter(this, event)"><br>
<textarea>回车换行
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