JavaScript Errors about 'SymRealWinOpen'
If you're receiving popup dialogs reporting that 'SymRealWinOpen' is undefined, then somewhere down the line, you're experiencing the effects of Symantec's NIS (Norton Internet Security) Popup and Ad Blocking software. When this program sees a webpage contain key bits of HTML code, it substitutes in some dummy code to prevent ads and popups. If you're a webmaster working on code for a website, you might find that this code gets glued in for you, even though you don't want it to - meaning that when other surfers come across it, they'll see the frustrating JavaScript error. The trick seems to be to turn off Norton's Ad Blocking and popup stopper functionality (although this is a shame, as it has it's uses). Why Norton should decide to annoy webmasters by adding this extra code is anyone's guess, but I'm sure it's all very clever! If you're just surfing and see this error message, contact the webmaster of the site in question - they'll probably want to know that their ad stopper has messed with their code, and is creating errors.

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