1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" /> 5 <title>select</title> 6 <script type="text/javascript" src="eventutil.js"></script> 7 </head> 8 <body> 9 <select name="location" id="selLocation"> 10 <option value="0">请选择...</option> 11 <option value="Sunnyvalue, CA">Sunnyvalue</option> 12 <option value="Los Angeles, CA">Los Angeles</option> 13 <option value="Mountain View, CA">Mountaion View</option> 14 <option value="">China</option> 15 <option>Australia</option> 16 </select> 17 <script type="text/javascript" src="test04.js"></script> 18 </body> 19 </html>
1 var selectbox = document.getElementById("selLocation"); 2 var newOption = new Option("Option text", "Option value"); 3 selectbox.add(newOption, undefined);