A Simple Parallel Array Lookup : Array « Language Basics « JavaScript DHTML






  1. JavaScript DHTML
  2. Language Basics
  3. Array

A Simple Parallel Array Lookup

  
/*
JavaScript Bible, Fourth Edition
by Danny Goodman 

John Wiley & Sons CopyRight 2001
*/


<HTML>
<HEAD>
<TITLE>Parallel Array Lookup</TITLE>
<SCRIPT LANGUAGE="JavaScript">
// the data
var regionalOffices = new Array("New York", "Chicago", "Houston", "Portland") 
var regionalManagers = new Array("Shirley Smith", "Todd Gaston", "Leslie Jones", "Harold Zoot") 
var regOfficeQuotas = new Array(300000, 250000, 350000, 225000) 
// do the lookup into parallel arrays
function getData(form) { 
   var i = form.offices.selectedIndex 
   form.manager.value = regionalManagers[i] 
   form.quota.value = regOfficeQuotas[i] 
} 
</SCRIPT>
</HEAD>
<BODY onLoad="getData(document.officeData)">
<H1>Parallel Array Lookup</H1>
<HR>
<FORM NAME="officeData"> 
<P> 
Select a regional office: 
<SELECT NAME="offices" onChange="getData(this.form)"> 
   <OPTION>New York 
   <OPTION>Chicago 
   <OPTION>Houston 
   <OPTION>Portland 
</SELECT> 
</P><P> 
The manager is: 
<INPUT TYPE="text" NAME="manager" SIZE=35> 
<BR> 
The office quota is: 
<INPUT TYPE="text" NAME="quota" SIZE=8> 
</P> 
</FORM> 
</BODY>
</HTML>








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