js side area code example
Example: javascript find area of triangle
<!DOCTYPE html>
<html>
<head>
<title>HTML5 template</title>
<link rel="stylesheet" type="text/css" href="homework14.css">
</head>
<body>
<header>Homework 14</header>
<div id="table1">
<div id="table2">
<div id="table3">
<div id="triangle">
<img src="triangle.gif">
</div>
<div id="table4">
<form>
<label for="width">Width (b):</label>
<input type="text" id="width" name="width">
<label for="height">Height (h):</label>
<input type="text" id="height" name="height">
</form>
Enter the width and height of your triangle to calculate the area
<input type="button" value="Calculate area">
</div>
</div>
<hr>
<div id="table5">
<form>
<label for="area">The area is:</label>
<input type="text" id="area" name="area">
</form>
</div>
</div>
</div>
</body>
</html>