JavaScript on top / under use. what is acceptable these days?

As a novice web developer, I am trying to find a thin line of cross-platform usability / compatibility and pizazz (functionality).

Is this really a problem, as it was a few years ago? Parts of my site that, as I understand it, require (aka make my life easier). JS will not be what the mobile phone wants to access (although he could if he wanted to).

http://www.w3schools.com/browsers/browsers_stats.asp

If you scroll down, it means that 95% of the computers accessing this site are JS compatible / installed.

Any input from someone who has dealt with this issue will be appreciated.

Thanks Jason

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<!-- make sure javascript is turned on.. --><noscript><div style="position:absolute;top:10px;left:10px;width:300px;height:90px;background-color:#FFF;border:solid;border-width:2px;border-color:#F00;font-size:14px;text-align:center;overflow:hidden;z-index:999;"><div style="position:absolute;top:5px;left:5px;width:50px;height:80px;background-color:#F00;color:#FFF;font-size:48px;text-align:center;line-height:80px;">!</div><div style="width:230px;height:60px;position:absolute;top:15px;left:65px;text-align:center;font-size:13px;color:#F00;font-style:italic;">ERROR: JAVASCRIPT MISSING<br /><br />Enable or install Javascript<br />to view this site.</div></div></noscript>

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There is no excuse for not paying attention to availability. There is only ignorance and bigotry.

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