Client CGI-implement backoffice of bbs with javascript and dhtml (2)

// The page is displayed, and the following tasks are performed on them. The following are all front-end javascript functions. Step 1: generate the option value of selCategory in the selection box based on the array aCategory in the window. onload event.
Function On_Load ()
        {
        
// Initialization
FrmManager. btnChangeMaster. disabled = true;
FrmManager. btnChangeName. disabled = true;
FrmManager. btnDeleteCategory. disabled = true;
FrmManager. btnDown. disabled = true;
FrmManager. btnModifyDescription. disabled = true;
FrmManager. btnUp. disabled = true;
FrmManager. btnAddForum. disabled = true;
FrmManager. btnDeleteForum. disabled = true;
        
// First generate the selCategory option
FrmManager. selCategoryName. options. length = 0;
For (var I = 0; I <aCategory. length; I ++)
        {
Var newOption = document. createElement ("OPTION ");
NewOption. value = aCategory [I]. CategoryID;