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<Title>Sample Program Ten</title>
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<CENTER><H2><FONT FACE="Beehive"><FONT COLOR="#C100C1"><FONT SIZE=+4>
A Sample Calculator</FONT></FONT></FONT></H2></CENTER>
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<h3><p>
<SCRIPT LANGUAGE = "JavaScript">
//Function to do simple calculations
//Arguments:
// theForm - the form in which a text field
// that contains the input resides
//Return value:
// the answer, written in the text area
// that resides in theForm
function simpleCalculator(theForm)
{
if ( confirm("Do the computation now?") )
{
theForm.answer.value = eval(theForm.expression.value)
}
else
{
alert("No calculation done.")
}
}
</SCRIPT>
</HEAD>
<BODY>
<H3> Simple Calculator </H3>
<FORM>
<B>Expression:<BR>
<INPUT TYPE = "text"
NAME = "expression" SIZE = 15>
<INPUT TYPE = "button"
VALUE = 'Calculate'
onClick = "simpleCalculator(this.form)"><BR>
Result:<BR>
<INPUT TYPE = "text"
NAME = "answer" SIZE = 15>
<BR>
</form>
<P><hr><p>
<h6><i>Page Owner:</i> <a href="http://www.umsl.edu/~sauter/">Professor Sauter</a> (<a
href="mailto:Vicki.Sauter@umsl.edu">Vicki.Sauter@umsl.edu</a>)<br>
<SCRIPT LANGUAGE = "JavaScript">
// This automatically updates the last modified date for the page.
//
when = document.lastModified
document.write("<i>This page was last modified on:</i> " + when + "<br>")
//
// This automatically updates the location documentation on the page.
where = document.location
document.write("<i>URL:</i> " + where)
</script>
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© Vicki L. Sauter. All rights Reserved.