IE6 7 select option setting disabled is invalid

A category of system documents needs to be disabled (notDelete), The form for making the document is the drop-down list used, and immediately thought of the option disabled.

 
1:FunctionDiableselectitem (ID, v ){
 

 
2:VaREl = Document. getelementbyid (ID );
 

 
3:For(VaRI = 0, j = El. Options. length; I <j; I ++ ){
 

 
4:If(EL. Options [I]. value = V) {El. Options [I]. Disabled =True;Break;}
 

 
5:}
 

 
6:}
 

OK, run, found that the option is not displayed in gray, still available .!!!CodeNo problem. What should I do? I tried to use IE8 in a whim and disabled it. Nnd is an IE Problem

What should I do? If there is a problem, find Google and find select, option, disabled and the Javascript Solution

Some foreigners have done it. Code:

1:/*************************************** *************************
 

 
2:* Author: Alistair lattimore
 

 
3:* Website: http://www.lattimore.id.au/
 

 
4:* Contact: http://www.lattimore.id.au/contact/
 

 
5:* Errors, suggestions or comments
 

 
6:* Date: 30 Jun 2005
 

 
7:* Version: 1.0
 

8:* Purpose: emulate the disabled attributte for the <option>
 

 
9:* Element in Internet Explorer.
 

 
10:* Use: You are free to use this script in non-essential cial
 

 
11:* Applications. You are however required to leave
 

 
12:* This comment at the top of this file.
 

 
13:*
 

 
14:* I 'd love an email if you find a use for it on your
 

15:* Site, though not required.
 

 
16:**************************************** ************************/
 

 
17: 
 

 
18:Window. onload =Function(){
 

 
19:If(Document. getelementsbytagname ){
 

 
20:VaRS = Document. getelementsbytagname ("Select");
 

 
21: 
 

 
22:If(S. length> 0 ){
 

23:Window. select_current =NewArray ();
 

 
24: 
 

 
25:For(VaRI = 0, select; select = s [I]; I ++ ){
 

 
26:Select. onfocus =Function() {Window. select_current [This. ID] =This. Selectedindex ;}
 

 
27:Select. onchange =Function() {Restore (This);}
 

 
28:Emulate (select );
 

 
29:}
 

30:}
 

 
31:}
 

 
32:}
 

 
33: 
 

 
34:FunctionRestore (e ){
 

 
35:If(E. Options [E. selectedindex]. Disabled ){
 

 
36:E. selectedindex = Window. select_current [E. ID];
 

 
37:}
 

 
38:}
 

 
39: 
 

 
40:FunctionEmulate (e ){
 

41:For(VaRI = 0, option; option = E. Options [I]; I ++ ){
 

 
42:If(Option. Disabled ){
 

 
43:Option. style. Color ="Graytext";
 

 
44:}
 

 
45:Else{
 

 
46:Option. style. Color ="Menutext";
 

 
47:}
 

 
48:}
 

 
49:}
 

Simulates the Disabled Effect and changes the text color. When an option has the disabled attribute, the Select element selects the index rollback default value.

The JS Code for judging the IE version comes from situ zhengmei.

 
1:VaRIe = (Function(){
 

2:VaRV = 3, DIV = Document. createelement ('Div'), A = div. All | [];
 

 
3:While(Div. innerhtml ='<! -- [If GT Ie'+ (++ V) +']> <Br> <! [Endif] -->', A [0]);
 

 
4:ReturnV> 4? V :! V;
 

 
5:}());