Your jQuery specs break in IE because IE does not allow commas in object / array literals (for which I hate it more than I can express, as if there were more reasons). It:
$('a.whats-this-main, a.package-details').tooltip({
fade: 250,
top: -400,
});
should be as follows:
$('a.whats-this-main, a.package-details').tooltip({
fade: 250,
top: -400
});
If you are going to debug JS in IE, you need to disable it Tools -> Internet Options : Advanced : Disable script debugging (Internet Explorer).
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