Question

I have two textboxes

<input id='random_value' name='random_name' value='First'
<input id='random_value' name='random_name' value=''

I need to replace the value of a textbox having value ‘First’ with ‘Second’ instead of using textbox id or textbox name.Is it Possible?

Answer 1

this function will replace the value in all input elements with “Second” if their value is “First”:

function replaceTextboxValue() {
    var els = document.getElementsByTagName("INPUT");
    for(var i = 0, ceiling = els.length; i < ceiling; i++) {
        if(els[i].value == "First")
            els[i].value = "Second";
    }
}