'onChange' Example
<head> <script language="JavaScript"> function function2(colors) { var col = (colors.options[colors.selectedIndex].value); if (col) { document.bgColor = col; } alert("The background color has changed to "+col) } </script></head> <body> <select name="colors" onChange="function2(this)"> <option value="white" selected>White</option> <option value="cyan">Cyan</option> <option value="ivory">Ivory</option> </select> </body>