修改没有选中的bug

@@ -374,7 +374,7 @@ function chosedLength() {
         infoHtml,
         choosedInfo = $('.choosed-info'),
         notChoose = $('.not-choose'),
-        chosedStr = $chosedL.eq(0).html().replace(/(^\s*)|(\s*$)/g, ""),
+        chosedStr = $chosedL.eq(0).html() ? $chosedL.eq(0).html().replace(/(^\s*)|(\s*$)/g, "") : '',
         strlen = 0;
 
     choosedInfo.removeClass('hide');