Question

At my web page, I have several text box controls (eg. Input type=”text” …)
What I would like to do is display every ID for every text box whenever or whatever text box i make focus event.

I already try this.

alert($("*:focus").attr("id"));

But it return undefined message.

So, Please let me know is there any way to know that which text box, i mean text box ID, is I already focused dynamically.

Answer 1

Setting a variable on focus, and removing the variable on blur will do the job:

var currentFocus = null; //to be defined in the global scope, if you want
                         // to access this property across your whole script

$("input").focus(function(){
    currentFocus = this.id;
}).blur(function(){
    currentFocus = null;
});