A Pop Up Window

That window that poped up was created by putting code like the following after the <HEAD> and before the </HEAD>:

<SCRIPT language="javascript">
    var color ;

    color = prompt("What color should I use for the background?","") ;

    document.bgColor = color ;
</SCRIPT>

A Fill In Form

The form below was created with code like this:

    <FORM NAME=formone>
    <INPUT NAME=color TYPE="TEXT" SIZE=20>
    <INPUT TYPE="BUTTON" VALUE="Change the background color!"
       ONCLICK="document.bgColor=document.formone.color.value;"><BR>
    </FORM>

Mouse Over Picture Change

    <A href=""
        onMouseOver="document.one.src='bookjar.jpg';"
        onMouseOut="document.one.src='univ2.jpg';">
        <IMG SRC="univ2.jpg" NAME="one">
    </A>