<html>
<head>
<link rel="stylesheet" href="js.css" TYPE="text/css">
<title></title>
</head>
<body TEXT="#000000" BGCOLOR="#ffffff" LINK="#000000" VLINK="#000000" ALINK="#000000">
<form>
<div align="center"><center><table border="1">
<tr>
<td bgcolor="black" colspan="4" align="center"><font size="-1" color="silver">JavaScript
Calculadora</font></td>
</tr>
<tr>
<td colspan="4"><input type="text" name="expr" size="20" action="calculate(this.form)"></td>
</tr>
<tr>
<td bgcolor="dimgray"><input type="button" value="C" onClick="clear_field(this.form)"></td>
<td bgcolor="dimgray"><input type="button" value="="
onClick="calculate(this.form)"></td>
<td bgcolor="dimgray"><input type="button" value="/" onClick="enter(this.form,
divide)"></td>
<td bgcolor="dimgray"><input type="button" value="*" onClick="enter(this.form,
multiply)"></td>
</tr>
<tr>
<td><input type="button" value="7" onClick="enter(this.form, 7)"></td>
<td><input type="button" value="8" onClick="enter(this.form, 8)"></td>
<td><input type="button" value="9" onClick="enter(this.form, 9)"></td>
<td bgcolor="dimgray"><input type="button" value="-" onClick="enter(this.form,
minus)"></td>
</tr>
<tr>
<td><input type="button" value="4" onClick="enter(this.form, 4)"></td>
<td><input type="button" value="5" onClick="enter(this.form, 5)"></td>
<td><input type="button" value="6" onClick="enter(this.form, 6)"></td>
<td bgcolor="dimgray"><input type="button" value="+" onClick="enter(this.form,
plus)"></td>
</tr>
<tr>
<td><input type="button" value="1" onClick="enter(this.form, 1)"></td>
<td><input type="button" value="2" onClick="enter(this.form, 2)"></td>
<td><input type="button" value="3" onClick="enter(this.form, 3)"></td>
<td bgcolor="dimgray" rowspan="2"><input type="button" value="E"
onClick="calculate(this.form)"></td>
</tr>
<tr>
<td align="center" colspan="2"><input type="button" value=" 0 "
onClick="enter(this.form, 0)"></td>
<td align="center"><input type="button" value=" . " onClick="enter(this.form,
decimal)"></td>
</tr>
</table>
</center></div>
</form>
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<p align="center"><br>
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