// Figure out what browser is being used
jQuery.browser = {
- version: b.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/)[1],
+ version: (b.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
safari: /webkit/.test(b),
opera: /opera/.test(b),
msie: /msie/.test(b) && !/opera/.test(b),