JQuery and site loading

Hey guys,

I have a question. My site is currently using JQuery to make it fade in when someone goes to the site. I like the effect but my concern is that if someone had Javascript off, then my site won't show up at all.

Is there a way to have it do all the nifty jquery things when the javascript is on but detect when the javascript is turned off on the browser and either give them an alert that says that their javascript is turned off or lets the browser bypass the javascript all together and render the page as if there isn't an jquery in the site?

I hope this make sense.