Fixed Uncaught TypeError

[rsmithlal]

Uncaught TypeError: Cannot read property 'left' of null tableHeadFixer.js?body=1:247

Check that the "cell" variable actually contains something before calling a method on it.

It broke my page's JS when my dynamically generated table didn't have enough columns to need to be fixed. This small change fixed my problem.

[rsmithlal]

solverLeftColspan @ tableHeadFixer.js?body=1:247 (anonymous function) @ tableHeadFixer.js?body=1:161 jQuery.extend.each @ jquery.js?body=1:649 jQuery.fn.jQuery.each @ jquery.js?body=1:271 fixLeft @ tableHeadFixer.js?body=1:159 (anonymous function) @ tableHeadFixer.js?body=1:26 jQuery.extend.each @ jquery.js?body=1:649 jQuery.fn.jQuery.each @ jquery.js?body=1:271 $.fn.tableHeadFixer @ tableHeadFixer.js?body=1:14 (anonymous function) @ items?day=6:425 fire @ jquery.js?body=1:1038 self.fireWith @ jquery.js?body=1:1149 jQuery.extend.ready @ jquery.js?body=1:434 completed @ jquery.js?body=1:104