How to show/hide input value on focus?

Question

I see this all over the web, but was wondering if anyone has the JavaScript code for the EASIEST way to show input value on blur, but hide in on focus.

Answer 1

I prefer jQuery way:

$(function(){
    /* Hide form input values on focus*/ 
    $('input:text').each(function(){
        var txtval = $(this).val();
        $(this).focus(function(){
            if($(this).val() == txtval){
                $(this).val('')
            }
        });
        $(this).blur(function(){
            if($(this).val() == ""){
                $(this).val(txtval);
            }
        });
    });
});

It is modified Hide Form Input Values On Focus With jQuery by Zack Perdue.