jQuery.fn.labelOver = function(overClass) {
	var nodes = this.children('label');
	return nodes.each(function(){
		var label = jQuery(this);
		var f = label.attr('for');
		if (f) {
			var input = jQuery('#' + f);
			this.hide = function() {
			  label.css({ textIndent: -10000 })
			}
			
			this.show = function() {
			  if (input.val() == '') label.css({ textIndent: 0 })
			}
			// handlers
			input.focus(this.hide);
			input.blur(this.show);
			label.addClass(overClass).click(function(){ input.focus() });
			
			if (input.val() != '') this.hide(); 
		}
	})
}