Implements the input placeholder attribute for browsers that don't support it yet. Requires Modernizr.js

placeholder-fix.js

jQuery(function($) {

	if ( ! Modernizr.input.placeholder) {
		$(':input[placeholder]').each(function() {
			var self = $(this);
			var placeholder = self.attr('placeholder');
			
			if ( ! self.val() || self.val() === placeholder) {
				self.addClass('placeholder').val(placeholder);
			}
			
			self.focus(function() {
					if (self.val() === placeholder) {
						self.removeClass('placeholder').val('');
					}
				})
			    .blur(function() {
					if ( ! self.val()) {
						self.val(placeholder)
						    .addClass('placeholder');
					}
					if (self.val() === placeholder) {
						self.addClass('placeholder');
					}
				});
		});
		
		// Clear placeholders on form submit
		$('form').submit(function() {
			$(':input[placeholder]').each(function() {
				var self = $(this);
				
				if (self.val() === self.attr('placeholder')) {
					self.val('');
				}
			});
		});
	}

});