A solution to the problem that the first non-hidden element in a form gets focus_Form special effects

There are many elements in form, which are represented by, for example, form.element[x];
The type of an element: The type of an element is represented by element.type
With the above understanding, let us now Let’s solve the first solution for non-hidden elements to gain focus:
First define an object as the method’s applicator:
var f=new Object();
Then:

Copy code The code is as follows:

f.getTheFirstFocus=function(){
if (document.forms.length > ; 0){
for (var i=0; i < document.forms[0].elements.length; i ) //Traverse elements
{ var oField = document.forms[0].elements [i];
if (oField.type != “hidden”) {oField.focus();}
return
}
}
}
};