$.fn.addOption=function(newCaption,newValue){newValue=newValue===undefined?"":newValue;return this.each(function(){if(this.tagName=='SELECT'){var option=new Option(newCaption,newValue);this.options[this.options.length]=option;}});};$.fn.dropDownEnCascada=function(ddlHijo,url,propagar){$(this).change(function(){var ddl=this;$('img#'+ddl.id).show();$(ddlHijo).children().remove();$(ddlHijo).addOption("Cargando valores...","-1");var idP=$(this)[0].value;$.getJSON(url,{id:idP},function(data){$(ddlHijo).children().remove();$.each(data,function(index,optionData){$(ddlHijo).addOption(optionData.Text,optionData.Value);});$('img#'+ddl.id).hide();if(propagar){ddlHijo.change();}});});};