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6.使用重置按鈕

<form name=form1>
<input type=reset name=reset1 value="rest form">
</form>
<script>
document.write("表單reset1的類型:"+document.form1.reset1.type+"<br>")
document.write("表單reset1的名稱:"+document.form1.reset1.name+"<br>")
document.write("表單reset1的值:"+document.form1.reset1.value+"<br>")
</script>

7.使用提交按鈕

<form name=form1>
<input type=submit name=submit1 value="submit form">
</form>
<script>
document.write("表單submit1的類型:"+document.form1.submit1.type+"<br>")
document.write("表單submit1的名稱:"+document.form1.submit1.name+"<br>")
document.write("表單submit1的值:"+document.form1.submit1.value+"<br>")
</script>

8.使用復(fù)選按鈕

<form name=form1>
<input type=checkbox name=cb1 >computer savvy?
</form>
<script>
document.write("表單cb1的類型:"+document.form1.cb1.type+"<br>")
document.write("表單cb1是否被選擇?:"+document.form1.cb1.checked+"<br>")
document.write("表單cb1的名稱:"+document.form1.cb1.name+"<br>")
</script>

9.使用單選按鈕

<form name=form1>
<input type=radio name=radio1>male
<input type=radio name=radio1>female
</form>
<script>
document.write("第一個(gè)按鈕被選擇"+document.form1.radio1[0].checked+"<br>")
document.write("第二個(gè)按鈕被選擇"+document.form1.radio1[1].checked+"<br>")
document.write("按鈕的名稱"+ document.form1.radio1[0].name+"<br>")
document.write("按鈕的個(gè)數(shù)"+document.form1.radio1.length)
</script>

10.使用選擇列表

<form name=form1>
<select name=select1 size=4>
<option name=option1 value=lon>london,England</option>
<option name=option2 value=dub>Dublin,Ireland</option>
</select>
</form>
<script>
document.write("這個(gè)選擇列表的名稱"+document.form1.select1.name+"<br>")
document.write("這個(gè)選擇列表的長(zhǎng)度"+document.form1.select1.length+"<br>")
document.write("這個(gè)選擇列表當(dāng)前被選擇的索引號(hào)"+document.form1.select1.selectedIndex+"<br>")
document.write("這個(gè)選擇列表的尺寸"+document.form1.select1.size+"<br>")
</script>

11.驗(yàn)證表單的有效性

<script>
function validate(){
if(document.form1.text1.value!='1'||'2'||'3'||'4'){
alert("請(qǐng)輸入1~4的整數(shù)")
}
}
</script>
<form name=form1>
請(qǐng)輸入1~4的整數(shù):
<input type=text name=text1 size=4 onchange=validate()>
</form>

12.控制表單焦點(diǎn)

<form name=form1>
<input type=text name=text1 value=where is you focus?><br>
<input type=text name=text2 value=is there?><br>
<input type=text name=text3 value=or maybe here?><br>
<input type=button name=button1 value="text box #1" onclick=document.form1.text1.focus()><br>
<input type=button name=button2 value="text box #2" onclick=document.form1.text2.focus()><br>
<input type=button name=button3 value="text box #3" onclick=document.form1.text3.focus()><br>
</form>

第十三章 使用分欄

第十四章 使用navigator

1.使用navigator對(duì)象

<script>
document.write("navigator對(duì)象的屬性"+"<br>")
document.write("appcodename:"+navigator.appCodeName+"<br>")
document.write("appname::"+navigator.appName+"<br>")
document.write("appversion:"+navigator.appVersion+"<br>")
document.write("platform:"+navigator.platform+"<br>")
document.write("userAgent:"+navigator.userAgent+"<br>")
</script>
<script>
document.write("navigator對(duì)象的方法"+"<br>")
document.write("javaEnabled():"+navigator.javaEnabled())
</script>

2.檢查用戶的瀏覽器

<script>
if(navigator.appName.indexOf("Microsoft")!=-1){
document.write("用戶瀏覽器是微軟的IE瀏覽器"+"<br>")}
else if(navigator.appName.indexOf("Netscape")!=-1){
document.write("用戶瀏覽器是netscape的netscape瀏覽器"+"<br>")}
if(navigator.appVersion.indexOf("4.0")!=-1){
document.write("you are using a version 4.0compatible browser")
}
else{
document.write("this browser is not 4.0 compliant")}
</script>

3.檢測(cè)用戶的操作系統(tǒng)

<script>
if (navigator.platform.indexOf("win32")!=-1){
document.write("you are using a computer running windows 95 or highter")}
else{
document.write("this computer is not running windows 95 or higher")}
</script>

4.使用location對(duì)象

<script>
document.write("location對(duì)象的屬性"+"<br>")
document.write("hash"+location.hash+"<br>")
document.write("hostname"+location.hostname+"<br>")
document.write("host"+location.host+"<br>")
document.write("href"+location.href+"<br>")
document.write("port"+location.port+"<br>")
document.write("search"+location.search+"<br>")
</script>

重新加載網(wǎng)頁(yè)
<form name=form1>
<input type=button name=button1 value=重新加載本頁(yè) onclick=location.reload>
</form>

5.使用cookie

<script>
finction makecookie(){
if(!document.cookie){
name=prompt("請(qǐng)輸入你的姓名");
document.cookie="name="+name+";";}
}
</script>

<body onload=makecookie()>
<script>
function makecookie(){
if(!document.cookie){
name=prompt("請(qǐng)輸入你的姓名")
document.cookie="name="+name+";";
namestart=document.cookie.indexOf("=");
nameend=document.cookieindexOf(";");
document.writeln("your name is:"+document.cookie.substring(namestart+1,nameend)+",br>")
}
}
</script>

出處：藍(lán)色理想
責(zé)任編輯：moby

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