JavaScript常用脚本2
53.直线型输入框
<INPUT name=Password size=10 type=password style="border-left-width: 0; border-right-width: 0;
border-top-width: 0; border-bottom-style: solid; border-bottom-width: 1; background-color: #9CEB9C">
54.可以将背景改为按钮性状，通过改变css改变属性
<td width="65" align="center" bgcolor="#E0E0E0" nmouseover=this.className='mouseoverbt';
onmouseout=this.className='mouseout';><a href="tm.asp?classid=76"><font
color="#000000">录音笔</font></a></td>
<style>
.mouseoverbt
{
background-image: url(http://www.yongle.com.cn/img/btbgw64h20y.gif);
background-repeat: no-repeat;
}
.mouseout
{
background-color: #E0E0E0;
}
</style>
55.同时按下CTRL和Q键
document.onkeydown=function()
{
if(event.ctrlKey&&event.keyCode==81)
{alert(1)}
}//
56.以下是一个完整的显示hint的代码，其思想是当鼠标停留是将div中的内容显示在鼠标出，当鼠标移出后在将该div隐
藏掉
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<style>
#hint{
width:198px;
border:1px solid #000000;
background:#99ff33;
position:absolute;
z-index:9;
padding:6px;
line-height:17px;
text-align:left;
top: 1520px;
}
</style>
<SCRIPT. LANGUAGE="JavaScript">
<!--
function showme()
{
var Son=window.document.getElementById("hint");
if (oSon==null) return;
with (oSon)
{
innerText=guoguo.value;
style.display="block";
style.pixelLeft=window.event.clientX+window.document.body.scrollLeft+6;
style.pixelTop=window.event.clientY+window.document.body.scrollTop+9;
}
}
function hidme()
{
var Son=window.document.getElementById("hint");
if (oSon==null) return;
oSon.style.display="none";
}
//-->
</SCRIPT>
<BODY>
<text id=guoguo value=ga>
<a href=# nmouseover=showme() nmouseout=hidme() nmousemove=showme() son=hint>dfdfd</a>
<div id=hint style="display:none"></div>
</BODY>
</HTML>
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57.弹出窗口
方法一：<body nload="openwen()"> 浏览器读页面时弹出窗口；
方法二：<body nunload="openwen()"> 浏览器离开页面时弹出窗口；
方法三：用一个连接调用：<a href="#" nclick="openwin()">打开一个窗口</a>
注意：使用的"#"是虚连接。
方法四：用一个按钮调用：<input type="button" nclick="openwin()" value="打开窗口"> 何时装载script
58.动态改变字体的大小
function doZoom(size)
{
document.getElementById('zoom').style.fontSize=size+'px'
}
function aa()
{
var newWin=window.open(url);
newWin.document.form1.text1.value=value1;
}改变弹出窗口上域的属性
opener.document.form2.text2.value=value2;改变父窗口的域的值
59.判断是何种浏览器
var name = navigator.appName;
if (name == "Microsoft Internet Explorer")
alert("IE");
else if (name == "Netscape")
alert("NS");//
60.vbsscript确定框
<script. language="VBScript">
<!--
MsgBox "确定删除吗？", 4
//-->
</script>//
61.复制内容到剪切板
function JM_cc(bb)
{
var b=eval("document.form1."+bb);
ob.select();
js=ob.createTextRange();
js.execCommand("Copy");
}//
62.java中建立数据库连接取数据
public void init()
{
String url="jdbc:odbc:javadata";
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection(url,"sa","");//mssql database user SA and password
DatabaseMetaData dma=con.getMetaData();
System.out.println("Connect to"+dma.getURL());
System.out.println(";Driver "+dma.getDriverName());
System.out.println(";Version "+dma.getDriverVersion());
System.out.println("");
Statement stmt=con.createStatement();
ResultSet rs=stmt.executeQuery("select * from company.dbo.TB_NAME where number=1");//Sql
rs.next();
String dispresult=rs.getString("name");
System.out.println(dispresult);// Instead,you can display it in Paint() or use AWT etc.
rs.close();
stmt.close();
con.close();
}
catch(SQLException ex)
{
System.out.println("!!!SQL Exception !!!");
while(ex!=null)
{
System.out.println("SQLState:"+ex.getSQLState());
System.out.println("Message:"+ex.getMessage());
System.out.println("Vendor:"+ex.getErrorCode());
ex=ex.getNextException();
System.out.println("");
}
}
catch(java.lang.Exception ex)
{
ex.printStackTrace();
}
}//
63.最小化窗口
window.blur()//
64.文档的路径
document.URL//
65.定时执行某段程序
setTimeout("change_color()",600);
66.设置为主页
function makeHome(){
netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesWrite");
navigator.preference("browser.startup.homepage", location.href);
}//
67.设置为收藏
function addFav(){
if(ie)
window.external.AddFavorite(location.href,'WWW.OGRISH.COM : GROTESQUE MOVIES AND PICTURES');
if(ns)
alert("Thanks for the bookmark!\n\nNetscape users click OK then press CTRL-D");
}//
68.判断cookie是否可用
navigator.cookieEnabled;//
69.显示有模式的有页面的弹出窗口
function setbgcolor_onclick()
{
var color = showModalDialog("/mailpage/compose/colorsel.html",0,"help=0");
if (color != null)
{
document.compose.bgcolor.value = color;
}
}//
70.截取小数点后两位
var a=3454545.4454545;
alert(a.toFixed(2));//
71.禁止选择页面上的文字来拷贝
<script>
function noEffect() {
with (event) {
returnValue = false;
cancelBubble = true;
}
return;
}
</script>
<body nselectstart="noEffect()" ncontextmenu="noEffect()">//
72.屏蔽右键菜单
oncontextmenu="event.returnValue = false"//
73.事件禁止起泡
event.cancelBubble = true//
74.禁止在输入框打开输入法
<input style="ime-mode: disabled">//
75.屏蔽汉字和空格
<input name="txt"><input type="submit" nClick="alert(!/[^ -}]|\s/.test(txt.value))">//
76.用javascript判断文件是否存在
function Exists(filespec)
{
if (filespec)
{
var fso;
fso = new ActiveXObject("Scripting.FileSystemObject");
alert(fso.FileExists(filespec));
}
}
选择图片 <input type=file name=f1><p>
<input type="submit" nClick="Exists(f1.value)">//
77.获得当前的文本框选中的文字
<input nmouseup="alert(document.selection.createRange().text)" value=123>//
78.跳转至目标页面，同时不可返回
<a href="javascript.:location.replace('http://www.sohu.com/')">sohu.com</a>//
79.获得当前的行是表格的第几行
<script>
function getrow(obj)
{
if(event.srcElement.tagName=="TD"){
curRow=event.srcElement.parentElement;
alert("这是第"+(curRow.rowIndex+1)+"行");
}
}
</script>
<table border="1" width="100%" nclick=getrow(this)>
<tr>
<td width="20%"> </td>
<td width="20%"> </td>
<td width="20%"> </td>
<td width="20%"> </td>
<td width="20%"> </td>
</tr>
<tr>
<td width="20%"> </td>
<td width="20%"> </td>
<td width="20%"> </td>
<td width="20%"> </td>
<td width="20%"> </td>
</tr>
</table>//