Input fields are retaining their values after a page refresh, how to prevent that?

Answer 1

I believe this is a browser thing, not a code thing.

However, if you want to override the default behavior when the page has loaded, try running (jQuery):

$(function(){
    $( 'textarea, input[type=text]' ).val('')
});

or (pure Javascript):

var load = function()
{
    document.forms[0].elements["username"].Value =
        document.forms['postform'].elements["text"].Value = '';
}

in the body tag of your page add: onLoad=load()