1. first step is to get any text editing software like notepad,
notepad ++ or any you can lay
your hands on.
2. copy the code below and paste in it.
<html>
<head>
<title>MYSitecalculator</title>
</head>
<body>
<form name="calculator" >
it-unite<input type="textfield" name="ans" value="">
<br>
<input type="button" value="1" onClick="document.calculator.ans.
value+='1'">
<input type="button" value="2" onClick="document.calculator.ans.
value+='2'">
<input type="button" value="3" onClick="document.calculator.ans.
value+='3'">
<input type="button" value="+" onClick="document.calculator.ans.
value+='+'">
<br>
<input type="button" value="4" onClick="document.calculator.ans.
value+='4'">
<input type="button" value="5" onClick="document.calculator.ans.
value+='5'">
<input type="button" value="6" onClick="document.calculator.ans.
value+='6'">
<input type="button" value="-" onClick="document.calculator.ans.
value+='-'">
<br>
<input type="button" value="7" onClick="document.calculator.ans.
value+='7'">
<input type="button" value="8" onClick="document.calculator.ans.
value+='8'">
<input type="button" value="9" onClick="document.calculator.ans.
value+='9'">
<input type="button" value="*" onClick="document.calculator.ans.
value+='*'">
<br>
<input type="button" value="0" onClick="document.calculator.ans.
value+='0'">
<input type="reset" value="Reset">
<input type="button" value="=" onClick="document.calculator.ans.
value=eval
(document.calculator.ans.value)">
</form>
</body>
3. save it with .html extention.
and open the file you have created with your browser and see
your calculator.