(function($) {
$.fn.placeholder = function(options) {
 var defaults = {css_class: "placeholder"};
 var options = $.extend(defaults, options); 
 this.each(function() {
  if ($(this).attr('placeholder') !== undefined) {
   var phvalue = $(this).attr("placeholder");
   var currvalue = $(this).attr("value");
   if (phvalue == currvalue) {
    $(this).addClass(options.css_class);
   }
   if (currvalue == "") {
    $(this).addClass(options.css_class);
    $(this).val(phvalue);
   }
   $(this).focusin(function(){
    var ph = $(this).attr("placeholder");
    if (ph == $(this).val()) {
     $(this).val("").removeClass(options.css_class);
    }
   });
    
   $(this).focusout(function(){
    var ph = $(this).attr("placeholder");
    if ($(this).val() == "") {
     $(this).val(ph).addClass(options.css_class);
    }
   });
  }
 });
 return this;
 };
})(jQuery);