Example of a form with a button, a function, a parameter and some value

Here you see a step by step combination of a form with a button, a function, a parameter and some value. The output is the value which is declared or pre-programmed in the Html-line; here: 99.

<HTML>
<HEAD>
<TITLE>......</TITLE>
<HEAD>

<SCRIPT>
function show (p)
 {
  alert(p)
 }
</SCRIPT>

<BODY>
xxxx<BR>
xxxx<BR>
xxxx<BR>
<FORM>
<INPUT TYPE="button" VALUE="inclick region" ONCLICK="show (99)">
</FORM>
xxxx<BR>
xxxx<BR>
xxxx.<BR>
</BODY>
</HTML>

You see the value 99 is allocated to the internal variable p after clicking on the button. The value of p is set into an alert-box by the function 'show'.

Results:

xxxx
xxxx
xxxx
xxxx
xxxx
xxxx.

Comments:

You see a button declared with a function show (99). If you click there, the number of 99 is display in an alert-box on the screen.

Enschede, 8 jan 2001; updated: jan 28, 2003