Drop-down form to choose a few, is automatically a few form

But, pop-up form field is different, the pop-up form fields is aaa, BBB, CCC and DDD, eee

CodePudding user response:

 
 
 
 
 
 
 
 
; (function () {
Var sel=document. GetElementById (" sel "); 
The function change () {
Var index=sel. SelectedIndex; 
Var children=document. QuerySelectorAll (" # inputBox> Div "); 
Var len=Math. Max (index + 1 and the children. Length); 
for (var i=0; i If (I & gt; The index) {
The children [I]. Style. The display="none"; 
} else if (I & lt; Children. Length) {
The children [I]. Style. The display="block"; 
} else {
Var div=document. The createElement method (" div "); 
Div. InnerHTML=sel. Options [I] text + '& lt; Input type="text" name="' + sel. Options [I] value + '"/& gt; '; 
Document. The getElementById (" inputBox "). The appendChild (div); 
} 
} 
} 
Sel. Onchange=change; 
Change (); 
}) (); 
</script>