<HEAD>
<title>Happy Codings :-) JavaScript Code Examples</title>

<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
function a_plus_b(form) {
a=eval(form.a.value)
b=eval(form.b.value)
c=a+b
form.ans.value = c
}
function a_minus_b(form) {
a=eval(form.a.value)
b=eval(form.b.value)
c=a-b
form.ans.value=c
}
function a_times_b(form) {
a=eval(form.a.value)
b=eval(form.b.value)
c=a*b
form.ans.value=c
}
function a_div_b(form) {
a=eval(form.a.value)
b=eval(form.b.value)
c=a/b
form.ans.value = c
}
function a_pow_b(form) {
a=eval(form.a.value)
b=eval(form.b.value)
c=Math.pow(a, b)
form.ans.value = c
}
// End -->
</SCRIPT>

<BODY>
<CENTER>
<FORM name="formx"><input type=text size=4 value=12 name="a"> 
<input type="button" value="  +  " onClick="a_plus_b(this.form)">  
<input type="button" value="  -  " onClick="a_minus_b(this.form)">  
<input type="button" value="  x  " onClick="a_times_b(this.form)">  
<input type="button" value="  /  " onClick="a_div_b(this.form)">  
<input type="button" value="  ^  " onClick="a_pow_b(this.form)">  
<input type="number" size=4 value=3 name="b"> = <input type "number" value=0 name="ans" size=9>
</FORM>
</CENTER>

<p><center>
<font face="arial, helvetica" size="8">Happy Codings :-) JavaScript Code Examples<br>
by <a href="http://javascript.happycodings.com/">JavaScript Code Examples</a></font>
</center><p>