200多个js技巧代码-CFANZ编程社区

1.文本框焦点问题
onBlur:当失去输入焦点后产生该事件
onFocus:当输入获得焦点后，产生该文件
Onchange:当文字值改变时，产生该事件
Onselect:当文字加亮后，产生该文件
 
< input  type = "text"  value = "mm"  onfocus = "if(value=='mm) {value=''}"  onblur="if
(value=='') { value = 'mm' }">点击时文字消失，失去焦点时文字再出现
 
 
2.网页按钮的特殊颜色
< input  type = button  name = "Submit1"  value = "郭强"  size = 10  class = s02
 
style = "background-color:rgb(235,207,22)" >
 
3.鼠标移入移出时颜色变化
< input  type = "submit"  value = "找吧"  name = "B1"  onMouseOut = this .style.color = "blue"
 
onMouseOver = this .style.color = "red"   class = "button" >
 
4.平面按钮
< input  type = submit  value=订阅 style="border:1px solid :#666666; height:17px; width:25pt; font-size:9pt;
 
BACKGROUND-COLOR: #E8E8FF; color:#666666"  name = "submit" >
 
5.按钮颜色变化
< input  type = text  name = "nick"   style="border:1px solid #666666;  font-size:9pt;  height:17px;
 
BACKGROUND-COLOR: #F4F4FF; color:#ff6600"  size = "15"  maxlength = "16" >
 
6.平面输入框
< input  type = "text"  name = "T1"  size = "20"  style = "border-style: solid; border-width: 1" >
 
7.使窗口变成指定的大小
< script >
window.resizeTo(300,283);
</ script >
 
8.使文字上下滚动
< marquee  direction = up  scrollamount = 1  scrolldelay = 100  onmouseover = 'this.stop()'  onmouseout = 'this.start()'
 
height = 60 >
<!-- head_scrolltext -->
< tr >
< td >
共和国
</ table >         <!-- end head_scrolltext -->
</ marquee >
 
9.状态栏显示该页状态
< base  onmouseover = "window.status='网站建设 http://www.webmake.cn/' ;return true" >
 
10.可以点击文字实现radio选项的选定
< br >
    < input  type = "radio"  name = "regtype"  value = "A03"  id = "A03" >
< label  for = "A03" > 情侣 : 一次注册两个帐户</ label > < br >
 
11.可以在文字域的font写onclick事件
 
12.打印</ a >打印网页
< a  href = 'javascript:window.print ()' >
 
13.线型输入框
< input  type = "text"  name = "key"   size = "12"  value = "关键字"  onFocus = this .select()  onMouseOver = this .focus()
 
class = "line" >
 
14.显示文档最后修改日期
< script  language = javascript >
function hi(str)
{
  document.write(document.lastModified)
 
  alert("hi"+str+"!")
}
</ script >
 
15.可以在鼠标移到文字上时就触发事件
< html >
< head >
< script  language = "LiveScript" >
<!-- Hiding
      function hello() {
        alert("哈罗!");
      }
</script>
</head>
<body>
<a href="" onMouseOver="hello()">link</a>
</body>
</html>
 
16.可以根据网页上的选项来确定页面颜色
<HTML>
<HEAD>
  <TITLE>background.html</TITLE>
</HEAD>
<SCRIPT>
<!--
 
function bgChange(selObj) {
  newColor = selObj.options[selObj.selectedIndex].text;
  document.bgColor = newColor;
  selObj.selectedIndex = -1;
  }
 
//-->
</ SCRIPT >
< BODY  STYLE = "font-family:Arial" >
< B >Changing Background Colors</ B >
< BR >
  < FORM >
   < SELECT  SIZE = "8"  onChange = "bgChange(this);" >
   < OPTION >Red
   < OPTION >Orange
   < OPTION >Yellow
   < OPTION >Green
   < OPTION >Blue
   < OPTION >Indigo
   < OPTION >Violet
   < OPTION >White
  < OPTION >pink
   </ SELECT >
  </ FORM >
</ BODY >
</ HTML >
 
17.将按钮的特征改变
< style  type = "text/css" >
<!--
.style1 { font-size: 12px; background: #CCCCFF; border-width: thin thin thin thin; border-color: #CCCCFF
 
#CCCCCC #CCCCCC #CCCCFF}
.style2 { font-size: 12px; font-weight: bold; background: #CCFFCC; border-width: thin medium medium thin;
 
border-color: #CCFF99 #999999 #999999 #CCFF99}
-->
</ style >
　　本例按钮的代码如下：
< input  type = "submit"  name = "Submit"  value = "提 交"  onmouseover = "this.className='style2'"
 
onmouseout = "this.className='style1'"  class = "style1" >
 
18.改变按钮的图片.
< style  type = "text/css" >
<!--
.style3 { font-size: 12px; background: url(image/buttonbg1.gif); border: 0px; width: 60px; height: 22px}
.style4 { font-size: 12px; font-weight: bold; background: url(image/buttonbg2.gif); border: 0px 0; width:
 
60px; height: 22px}
-->
</ style >
　　本例的按钮代码如下：
< input  type = "submit"  name = "Submit2"  value = "提 交"  onmouseover = "this.className='style4'"
 
onmouseout = "this.className='style3'"  class = "style3" >
 
19.打印页面
< div  align = "center" >< a  class = content  href = "javascript:doPrint();" >打印本稿</ a ></ div >
 
20.可以直接写html语言
document.write("");
 
21.改变下拉框的颜色
< select  name = "classid"
 
onChange = "changelocation(document.myform.classid.options[document.myform.classid.selectedIndex].value)"
 
size = "1"  style = "color:#008080;font-size: 9pt" >
 
22.转至目标URL
window.location="http://guoguo"
 
23.传递该object的form
UpdateSN('guoqiang99267',this.form)
function UpdateSN(strValue,strForm)
{
   strForm.SignInName.value = strValue;
   return false;
}
 
24.文字标签
< label  for = "AltName4" >< input  name = "AltName"  type = "RADIO"  tabindex = "931"   id = "AltName4"
 
>guoqiang99859</ label >
 
25.layer2为组件的ID，可以控制组件是否可见
document.all.item('Layer2').style.display = "block";
document.all.item('Layer2').style.display = "none";//
 
26.将页面加入favorite中
< script  language = javascript >
<!--
function Addme(){
url = "http://your.site.address"; //你自己的主页地址
title = "Your Site Name"; //你自己的主页名称
window.external.AddFavorite(url,title);
-->
</ script >//
 
27.过10秒自动关闭页面
< script language="JavaScript" >
function closeit() {
setTimeout("self.close()"，10000)
}
< /script >
 
28.可以比较字符的大小
char=post.charAt(i);
if(!('0'<=char&&char<='9'))
 
29.将字符转化为数字
month = parseInt(char)
 
30.点击value非空的选项时转向指定连接
  < select  onchange = 'if(this.value!="")window.open(this.value)'  class = "textinput" >
     < option  selected>主办单位</ option >
     < option >-----------------</ option >
     < option  value = "http://www.bjd.com.cn/" >北京日报</ option >
     < option  value = "http://www.ben.com.cn/" >北京晚报</ option >
</ select >
 
31.改变背景颜色
< td  width=*  class = dp  bgColor=#FAFBFC  onmouseover = "this.bgColor='#FFFFFF';"
 
onmouseout = "this.bgColor='#FAFBFC';" >
 
32.改变文字输入框的背景颜色
< style >
.input2 {background-image: url('../images/inputbg.gif');   font-size: 12px; background-color:
 
#D0DABB;border-top-width:1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px}
</ style >
< input  name = content  type = text  size = "47"  class = "input2"  maxlength = "50" >
 
33.改变水平线的特征
< hr  size = "0"  noshade  color = "#C0C0C0" >
 
34.传递参数的方式
< a  href = "vote.asp?CurPage=8&id=3488" >8</ a >
 
35.页内跳转
< a  href = "#1" >1</ a >
< a  href = "#2" >2</ a >
< a  href = "#3" >3</ a >
< a  href = "#4" >4</ a >
< a  href = "#5" >5</ a >
< a  href = "#6" >6</ a >
< a  href = "#7" >7</ a >
< a  name = "1" >dfdf</ a >
< a  name = "2" >dfdf</ a >//
 
36.两个按键一起按下
if(event.ctrlKey && window.event.keyCode==13)//
 
37.刷新页面
javascript:this.location.reload()//
 
38.将网页的按钮使能
< SCRIPT  LANGUAGE = "JavaScript" >
function haha()
{
  for(var i=0;i< document.form1.elements.length ;i++)
  {
   if(document.form1.elements[i].name.indexOf("bb")!=-1)
    document.form1.elements[i].disabled=!document.form1.elements[i].disabled;
  }
}
</SCRIPT>
< BODY >< form  name = form1 >
< INPUT  TYPE = "button"  NAME = "aa "   value = cindy  onclick = haha ()>
< INPUT  TYPE = "button"  NAME = "bb "  value = guoguo >
< INPUT  TYPE = "button"  NAME = "bb "  value = guoguo >
 
39.文字移动
< marquee  scrollamount = 3  onmouseover = this .stop();  onmouseout = this .start();>
 
40.双击网页自动跑
< SCRIPT  LANGUAGE = "JavaScript" >
var currentpos,timer;
function initialize()
{
  timer=setInterval("scrollwindow()",1);
}
function sc()
{
  clearInterval(timer);
}
function scrollwindow()
{
  currentpos=document.body.scrollTop;
  window.scroll(0,++currentpos);
  if (currentpos != document.body.scrollTop)
   sc();
}
document.onmousedown=sc
document.ondblclick=initialize
</ SCRIPT >//
 
41.后退
< INPUT  TYPE = "button"  onclick = window .history.back()  value = back >
 
42.前进
< INPUT  TYPE = "button"  onclick = window .history.forward()  value = forward >
 
43.刷新
< INPUT  TYPE = "button"  onclick = document .location.reload()  value = reload >
 
44.转向指定网页
document.location="http://ww"或者document.location.assign("http://guoguo.com")
 
45.在网页上显示实时时间
< SCRIPT  LANGUAGE = "JavaScript" >
var clock_id;
window.onload=function()
{
  clock_id=setInterval("document.form1.txtclock.value=(new Date);",1000)
}
</ SCRIPT >//
 
46.可以下载文件
document.location.href="目标文件"//
 
47.连接数据库
import java.sql.*;
String myDBDriver="sun.jdbc.odbc.JdbcOdbcDriver";
Class.forName(myDBDriver);
Connection conn=DriverManager.getConnection("jdbc:odbc:firm","username","password");
Statement stmt=conn.createStatement();
ResultSet rs=stmt.executeQuery(sql);
rs.getString("column1");//
 
48.可以直接在页面“div”内写下所需内容
< INPUT  TYPE = "button"  onclick="a1.innerHTML='<font  color = red >*</ font >'">
< div  id = a1 ></ div >//
 
49.可以改变页面上的连接的格式，使其为双线
< style >
A:link {text-decoration: none; color:#0000FF; font-family: 宋体}
A:visited {text-decoration: none; color: #0000FF; font-family: 宋体}
A:hover {text-decoration: underline overline; color: FF0000}
</ style >
 
< style >
A:link {text-decoration: none; color:#0000FF; font-family: 宋体}
A:visited {text-decoration: none; color: #0000FF; font-family: 宋体}
A:hover {text-decoration: underline overline line-through; color: FF0000}
TH{FONT-SIZE: 9pt}
TD{FONT-SIZE: 9pt}
body {SCROLLBAR-FACE-COLOR: #A9D46D; SCROLLBAR-HIGHLIGHT-COLOR: #e7e7e7;SCROLLBAR-SHADOW-COLOR:#e7e7e7;
 
SCROLLBAR-3DLIGHT-COLOR: #000000; LINE-HEIGHT: 15pt; SCROLLBAR-ARROW-COLOR: #ffffff;
 
SCROLLBAR-TRACK-COLOR: #e7e7e7;}
 
INPUT{BORDER-TOP-WIDTH: 1px; PADDING-RIGHT: 1px; PADDING-LEFT: 1px; BORDER-LEFT-WIDTH: 1px; FONT-SIZE:
 
9pt; BORDER-LEFT-COLOR: #cccccc;
BORDER-BOTTOM-WIDTH: 1px; BORDER-BOTTOM-COLOR: #cccccc; PADDING-BOTTOM: 1px; BORDER-TOP-COLOR: #cccccc;
 
PADDING-TOP: 1px; HEIGHT: 18px; BORDER-RIGHT-WIDTH: 1px; BORDER-RIGHT-COLOR: #cccccc}
DIV,form ,OPTION,P,TD,BR{FONT-FAMILY: 宋体; FONT-SIZE: 9pt}
textarea, select {border-width: 1; border-color: #000000; background-color: #efefef; font-family: 宋体;
 
font-size: 9pt; font-style: bold;}
.text { font-family: "宋体"; font-size: 9pt; color: #003300; border: #006600 solid; border-width: 1px 1px
 
1px 1px}
</ style >完整的css
 
 
50.新建frame
< a
 
href="javascript:newframe('http://www.163.net/help/a_little/index.html','http://www.163.net/help/a_little
 
/a_13.html')">< img  alt=帮助  border = 0  src = "http://bjpic.163.net/images/mail/button-help.gif" ></ a >