Code for JSP single-choice button verification, drop-down box verification, and check box Verification

// Verify gender (single-choice button verification)
Function checkxb (){
VaR temp = false;
VaR xbobj1 = Document. getelementbyid ("xb1 ");
VaR xbobj2 = Document. getelementbyid ("XB2 ");
If (xbobj1.checked | xbobj2.checked ){
Temp = true;
}
Return temp;
}
Function checkform (){
// Verify gender (single-choice button verification)
If (! Checkxb ()){
Alert ("select gender ");
Return false;
}
// Validators (drop-down box verification)
If (document. getelementbyid ("LB"). selectedindex = 0 ){
Alert ("select personnel type ");
Return false;
}
}
// (Check box verification) checks whether at least one checkbox is selected.
Function checkselectedone (cbxname ){
VaR cbxs = Document. getelementsbyname (cbxname );
If (cbxs! = NULL ){
If (cbxs. Length ){
For (VAR I = 0; I <cbxs. length; I ++ ){
If (cbxs [I]. Checked ){
Return true;
}
}
} Else {
Return cbxs. Checked
}
}
Return false;
}
If (! Checkselectedone ('xgjzh ')){
Alert ("You have no choice! ");
}