asked on

Select Statement with Javascript

I am writing an ASP page that needs to provide a definition depending on what the user selects.

Example -

<select name="fruit">
<option value="">Please Select</option>
<option value="Apple">Apple</option>
<option value="Orange">Orange</option>
</select>

Depending on which fruit they select, a little window pops up with definition. How do I do this?

b0lsc0tt

JodyFischer,

You can do that with something like ...

<script type="text/javascript">
function showDef(val) {
switch (val) {
case "Apple":
alert('A red fruit.');
break;
case "Orange":
alert('An orange colored fruit.');
break;
}
}
</script>

The code above would go in the head section of your html. The select tag would become ...

<select name="fruit" onchange="showDef(this.value);">

Let me know if you have any questions or need more information.

b0lsc0tt

b0lsc0tt

JodyFischer,

I used an "alert" but you could make a popup or have the definition appear in some "popup div" on the page. The alert part can easily be changed to something else but the rest will show you how to do the Javascript part.

Let me know if you have a question.

b0lsc0tt

erikTsomik

try something like this
function vag (obj) {
if (obj.value)=='Apple' {
alert ('Apple');
}
if (obj.value)=='Orange'{
alert ('Orange');
}
}
<select name="fruit" onchange="vag (this);">
<option value="">Please Select</option>
<option value="Apple">Apple</option>
<option value="Orange">Orange</option>
</select>

JodyFischer

ASKER

It works as an alert, but I need it to be a small second browser. Can you show me how to do that instead?

erikTsomik

what do you mean by that

JodyFischer

ASKER

You wrote

I used an "alert" but you could make a popup or have the definition appear in some "popup div" on the page. The alert part can easily be changed to something else but the rest will show you how to do the Javascript part.

How do you make it a pop up (so it looks like a second browser window) instead of a grey box. I need to be able to format and have multiple lines on what comes up.

ASKER CERTIFIED SOLUTION

b0lsc0tt

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

erikTsomik

then you can try something like this
http://www.malsup.com/jquery/block/#page

JodyFischer

ASKER

I am so sorry to be a pain, but it's giving me an error - Access Denied

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
<title>Untitled</title>
<script type="text/javascript">
function showDef(val) {
switch (val) {
case "Apple":
makeWin('A red fruit.');
break;
case "Orange":
makeWin('An orange colored fruit.');
break;
}
}
function makeWin(str) {
var w = window.open('','window1');
w.document.write("<html><head><title></title></head>");
w.document.write("<body>" + str + "</body></html>");
w.document.close;
}
</script>

</head>

<body>

<select name="fruit" onchange="showDef(this.value);">
<option value="">Please Select</option>
<option value="Apple">Apple</option>
<option value="Orange">Orange</option>
</select>
</body>
</html>

JodyFischer

ASKER

I closed everything and it's working great. Thank you so much.

b0lsc0tt

Your welcome! I'm glad I could help. Thanks for the grade, the points and the fun question.

bol

b0lsc0tt

By the way, to improve the script and handle if the window already exists you could use ...

<script type="text/javascript">
var w = null;
function showDef(val) {
switch (val) {
case "Apple":
makeWin('A red fruit.');
break;
case "Orange":
makeWin('An orange colored fruit.');
break;
}
}
function makeWin(str) {
if (w== null || w.closed) {
w = window.open('','window1');
}
w.document.write("<html><head><title></title></head>");
w.document.write("<body>" + str + "</body></html>");
w.document.close;
}
</script>

That change just makes sure the popup window doesn't exist or has been closed.

bol