Form

form 和  fileset 参考好喝来自： 梦之都

对于select的操作：

1. 属性

设select的id为selectid 
用selectid.options[i].text来访问/修改各个选项的文字； 
用selectid.options[i].value来访问/修改各个选项对应的值。

2.  插入值

 
option1 
option2 
 
change 

3. 设置选择

   for (var i = 0; i < selectid.options.length; i++) {        
        if (selectid.options[i].text == objItemText) {        
            selectid.options[i].selected = true;        
            break;        
        }        
    } 

4. 删除所有的

selectidt.options.length = 0; 

5.  删除select中选中的项    

function jsRemoveSelectedItemFromSelect(objSelect) {        
    var length = objSelect.options.length - 1;    
    for(var i = length; i >= 0; i--){    
        if(objSelect[i].selected == true){    
            objSelect.options[i] = null;    
        }    
    }    
}  

6.删除

 for (var i = 0; i < objSelect.options.length; i++) {        
            if (objSelect.options[i].value == objItemValue) {        
                objSelect.options.remove(i);        
                break;        
            }        
        }        

7.增加

        var varItem = new Option(objItemText, objItemValue);      
        objSelect.options.add(varItem);     

"dreamdu.php" method= "post" id= "dreamduform">
                

                                

你对梦之都的感觉:

                                for= "select">你对梦之都的感觉
                                "1" id= "select" name= "select">
                                                很全面,很好
                                                "selected">一般般吧,还要努力
                                                有很多问题,不过还可以
                                
                

                

                                

你在梦之都想学习的编程语言:

                                for= "multipleselect">你在梦之都想学习的编程语言
                                "10" multiple= "multiple" id= "multipleselect" name= "multipleselect">
                                                "selected">XHTML
                                                CSS
                                                JAVASCRIPT
                                                XML
                                                "selected">PHP
                                                C#
                                                JAVA
                                                C++
                                                PERL
                                
                

-------------------------------------------------------------

"dreamdu.php" method= "post" id= "dreamduform">
                

                                

用户名与密码:

                                "hiddenField" name= "hiddenField" type= "hidden" value= "hiddenvalue" />
                                for= "username">用户名:
                                "text" id= "username" name= "username" value= "dreamdu" />
                                for= "pass">密码:
                                "password" id= "pass" name= "pass" />
                

                

                                

性别:

                                for= "boy">男
                                "radio" value= "1" id= "sex" name= "sex" />
                                for= "girl">女
                                "radio" value= "2" id= "sex" name= "sex" />
                                for= "sex">保密
                                "radio" value= "3" id= "sex" name= "sex" />
                

                

                                

我最喜爱的:

                                for= "computer">计算机
                                "checkbox" value= "1" id= "fav" name= "fav" />
                                for= "trval">旅游
                                "checkbox" value= "2" id= "fav" name= "fav" />
                                for= "buy">购物
                                "checkbox" value= "3" id= "fav" name= "fav" />
                

                

                                

对梦之都的意见:

                                for= "select">你对梦之都的感觉
                                "1" id= "select" name= "select">
                                                很全面,很好
                                                一般般吧,还要努力
                                                有很多问题,不过还可以
                                
                

                

                                

梦之都编程语言选择:

                                for= "multipleselect">你想在梦之都学习的编程语言
                                "10" multiple= "multiple" id= "multipleselect" name= "multipleselect">
                                                XHTML
                                                CSS
                                                JAVASCRIPT
                                                XML
                                                PHP
                                                C#
                                                JAVA
                                                C++
                                                PERL
                                
                

                

                                

我要在梦之都学:

                                for= "WebDesign">选择一个你在梦之都最想学的
                                "WebDesign" name= "WebDesign">
                                                "client">
                                                                "HTML">HTML
                                                                "CSS">CSS
                                                                "javascript">javascript
                                                
                                                "server">
                                                                "PHP">PHP
                                                                "ASP">ASP
                                                                "JSP">JSP
                                                
                                                "database">
                                                                "Access">Access
                                                                "MySQL">MySQL
                                                                "SQLServer">SQLServer
                                                
                                
                

                

                                

个人化信息:

                                for= "myp_w_picpath">个性照片上传
                                "file" id= "myp_w_picpath" name= "myp_w_picpath" size= "35" maxlength= "255" />
                                for= "contactus">联系我们
                                "50"</font> rows= <font color="#800000">"10"</font> id= <font color="#800000">"contactus"</font> name= <font color="#800000">"contactus"</font>> <br>                                                 可爱的猴子 <br>                                 
                

                

                                

提交:

                                "submit" value= "submit" id= "submit" name= "submit" />
                                "reset" value= "reset" id= "reset" name= "reset" />