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I want to be able to imitate a Windows pop up window, so the person completing a form can click on a map to get the value. How do I get the value into the form?

There are two parts to this example. The first is the source code for your form and the second is the HTML code that makes up our map lookup page.

Here is our form:

Map Area

Try clicking on the "Show Map" button to see what happens. Then click on the number you want and see what happens to the form's input field. source code

 <input type=button onClick='targetitem = document.forms[0].maparea; 
 dataitem ="map.shtml",
 "dataitem", "toolbar=no,menubar=no,scrollbars=yes"); dataitem.targetitem = targetitem' 
 value="Show Map">
In this example, you will see that I have forms[0] set. In fact there is a form used for the navigation bar at the top of the page, so in the actual source code it is set to forms[1]. You can have as many of these pop-ups as you want on a form, just change the document.forms[0].maparea to be document.forms[0].fieldname.
Here are the contents of the pop-up window:
function select_item(item)
targetitem.value = item;
return false;

<B>gt;Our Map</B>gt;

<IMAGE SRC="map1.gif" ISMAP USEMAP="#MAP1">gt;
<MAP NAME="MAP1">gt;
<AREA SHAPE=RECT COORDS="11,10,116,133" HREF="" onClick='return select_item("1")'>gt;
<AREA SHAPE=RECT COORDS="121,11,227,172" HREF="" onClick='return select_item("2")'>gt;
<AREA SHAPE=RECT COORDS="11,140,115,226" HREF="" onClick='return select_item("3")'>gt;
<AREA SHAPE=RECT COORDS="119,177,225,227" HREF="" onClick='return select_item("4")'>gt;
<AREA SHAPE=default HREF="" >gt;
You do not have to use an image map. You can also use regular text links to have this script return a value to a form.
    <a href="" onClick='return select_item("1")'>Area 1</a>
    <a href="" onClick='return select_item("2")'>Area 2</a>

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