bootstrap中的工具提示在ajax之后不能工作

I have a file named index.php, which in I include another file named file1.php (in index.php I include all necessary files for jQuery, js etc.). In file1.php I have a table with buttons which each opens a modal. the information in the modal is from an ajax call for file2.php. in file2.php I create a table. In the table I have the cell : I have a file named index.php, which in I inclu