Nifty jQuery for clearing values of forms when focused

contactForm.js

var formElements = '.formClass input, .formClass textarea, #anyID';

$(document).ready(function(){
    $(formElements).each(function(){ //do this for each element
        $.data(this, 'default', this.value); //grab the default value and pair with 'default'
    }).focus(function(){
        if ( $.data(this, 'default') === $(this).val() ) { // on focus: clear the value if it's the default
  		$(this).val('');
		}
    }).blur(function(){
        if ( $(this).val() === '' ) {
			$(this).val($.data(this, 'default')); // on blur: put default value back if blank
        }
    });
});