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! ");
}