$.fn.tabularosa=function(){return this.each(function(){var a=$(this),b=b||a.attr("placeholder");a.focus(function(){a.val()==b&&a.val("").removeClass("tabularosa")}).blur(function(){if($.trim(a.val())==""||a.val()==b)a.val(b).addClass("tabularosa")}).blur()})};
$.fn.tabularosa=function(a){return this.each(function(){if(!(this.placeholder&&!$.browser.msie)){a||(a=$(this).attr("placeholder"));if(a){var b=$(this);b.focus(function(){b.val()==a&&b.val("").removeClass("placeholder")}).blur(function(){if($.trim(b.val())==""||b.val()==a)b.val(a).addClass("placeholder")}).blur()}}})};
update minified version