tablesorter/dist/js/extras/jquery.metadata.min.js

!function($){$.extend({metadata:{defaults:{type:"class",name:"metadata",cre:/(\{.*\})/,single:"metadata"},setType:function(a,b){this.defaults.type=a,this.defaults.name=b},get:function(elem,opts){var data,m,e,attr,settings=$.extend({},this.defaults,opts);if(settings.single.length||(settings.single="metadata"),data=$.data(elem,settings.single))return data;if(data="{}","class"===settings.type)m=settings.cre.exec(elem.className),m&&(data=m[1]);else if("elem"===settings.type){if(!elem.getElementsByTagName)return;e=elem.getElementsByTagName(settings.name),e.length&&(data=$.trim(e[0].innerHTML))}else void 0!==elem.getAttribute&&(attr=elem.getAttribute(settings.name),attr&&(data=attr));return data.indexOf("{")<0&&(data="{"+data+"}"),data=eval("("+data+")"),$.data(elem,settings.single,data),data}}}),$.fn.metadata=function(a){return $.metadata.get(this[0],a)}}(jQuery);