[查看演示] 源码如下
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<FORM name="isc">
<table border="0" cellspacing="0" cellpadding="0">
<tr align="center">
<td nowrap height="11">
<select name="example" size="1" onChange="redirect(this.options.selectedIndex)">
<option selected>---Select1-------------</option>
<option>Webmaster Sites</option>
<option>News Sites</option>
</select>
<select name="stage2" size="1" onChange="redirect1(this.options.selectedIndex)">
<option value=" " selected> </option>
<option value=" " selected>---Select2--------------</option>
<option value=" " selected>---Select2--------------</option>
</select>
<select name="stage3" size="1" onChange="redirect2(this.options.selectedIndex)">
<option value=" " selected> </option>
<option value=" " selected>---Select3----------------</option>
<option value=" " selected>---Select3----------------</option>
</select>
<script>
<!--
/*
Triple Combo Script Credit
By Hamid Cheheltani/ Website Abstraction (http://www.wsabstract.com)
Visit <A HREF="http://wsabstract.com" TARGET=_blank>http://wsabstract.com</A> for this and over 400+ other scripts
*/
var groups=document.isc.example.options.length
var group=new Array(groups)
for (i=0; i<groups; i++)
group[i]=new Array()
group[0][0]=new Option("---Select2---"," ");
group[1][0]=new Option("Now Select This One"," ");
group[1][1]=new Option("JavaScript","47");
group[1][2]=new Option("DHTML","46");
group[1][3]=new Option("CGI","45");
group[2][0]=new Option("Now Select This One"," ");
group[2][1]=new Option("General News","115");
group[2][2]=new Option("Technology News","116");
var temp=document.isc.stage2
function redirect(x){
for (m=temp.options.length-1;m>0;m--)
temp.options[m]=null
for (i=0;i<group[x].length;i++){
temp.options[i]=new Option(group[x][i].text,group[x][i].value)
}
temp.options[0].selected=true
redirect1(0)
}
var secondGroups=document.isc.stage2.options.length
var secondGroup=new Array(groups)
for (i=0; i<groups; i++) {
secondGroup[i]=new Array(group[i].length)
for (j=0; j<group[i].length; j++) {
secondGroup[i][j]=new Array() }}
secondGroup[0][0][0]=new Option("---Select 3---"," ");
secondGroup[1][0][0]=new Option("---Select 3---"," ");
secondGroup[1][1][0]=new Option("Now Select This One"," ");
secondGroup[1][1][1]=new Option("Website Abstraction","http://wsabstract.com");
secondGroup[1][1][2]=new Option("JavaScript for the non programmer","http://webteacher.com/javascript/");
secondGroup[1][1][3]=new Option("Java-Scripts.net","http://java-scripts.net");
secondGroup[1][2][0]=new Option("Now Select This One"," ");
secondGroup[1][2][1]=new Option("Dynamic Drive","http://www.dynamicdrive.com");
secondGroup[1][2][2]=new Option("Beginner\'s Guide to DHTML","http://www.geocities.com/ResearchTriangle/Facility/4490/");
secondGroup[1][2][3]=new Option("Web Coder","http://webcoder.com/");
secondGroup[1][3][0]=new Option("Now Select This One"," ");
secondGroup[1][3][1]=new Option("CGI Resources","http://www.cgi-resources.com");
secondGroup[1][3][2]=new Option("Ada\'s Intro to CGI","http://adashimar.hypermart.net/");
secondGroup[2][0][0]=new Option("---Select 3---"," ");
secondGroup[2][1][0]=new Option("Now Select This One"," ");
secondGroup[2][1][1]=new Option("CNN","http://www.cnn.com");
secondGroup[2][1][2]=new Option("MSNBC","http://www.msnbc.com");
secondGroup[2][1][3]=new Option("ABC News","http://www.abcnews.com");
secondGroup[2][2][0]=new Option("Now Select A Page"," ");
secondGroup[2][2][1]=new Option("News.com","http://www.news.com");
secondGroup[2][2][2]=new Option("Wired","http://www.wired.com");
var temp1=document.isc.stage3
function redirect1(y){
for (m=temp1.options.length-1;m>0;m--)
temp1.options[m]=null
for (i=0;i<secondGroup[document.isc.example.options.selectedIndex][y].length;i++){
temp1.options[i]=new Option(secondGroup[document.isc.example.options.selectedIndex][y][i].text,secondGroup[document.isc.example.options.selectedIndex][y][i].value)
}
temp1.options[0].selected=true
}
function redirect2(z){
window.location=temp1[z].value
}
//-->
</script>
</td>
</tr>
</table>
</FORM>
<p><font face="arial" size="-2">This free script provided by</font><br>
<font face="arial, helvetica" size="-2"><a href="http://wsabstract.com">Website
Abstraction</a></font></p>
<div style="position: absolute; top: 10; right: 10; width: 148; height: 18;cursor:hand">
<input type="button" name="Button" value="查看源代码" onClick= 'window.location = "view-source:" + window.location.href'></div> |
