jQuery Toggle Placeholder

placeholder.js

// Placeholder Toggle jQuery Extension
$.fn.togglePlaceholder = function() {
    return this.each(function() {
        $(this)
        .data("holder", $(this).attr("placeholder"))
        .focusin(function(){
            $(this).attr('placeholder','');
        })
        .focusout(function(){
            $(this).attr('placeholder',$(this).data('holder'));
        });
    });
};

jQuery(document).ready(function($) {

	// Toggle All Elements with Placeholder Attributes
	$("[placeholder]").togglePlaceholder();	
});