Blinking Images With Javascript

I needed to have an image blink in one of our intranet applications today, so I wrote this quick javascript to accomodate. There aren’t many good image blinker scripts online, so I’m adding mine to the mix:

Start by adding this to your javascript file:

function blinkId(id) {
	var i = document.getElementById(id);
	if(i.style.visibility=='hidden') {
		i.style.visibility='visible';
	} else {
		i.style.visibility='hidden';
	}
    setTimeout("blinkId('"+id+"')",1000);
	return true;
}

And this right before you end your <html> tag:

<script type="text/javascript">blinkId('YOUR_ELEMENT_ID');</script>

This will work for images, divs, spans, pretty much any block level element with an id.

Updated 8/19/2008: Fixed a copy/paste bug in this post.

8 thoughts on “Blinking Images With Javascript”

The correct is:
…..
setTimeout(“blinkId(‘”+id+”‘)”,1000);
return true;
…..

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Huh.. I typed it backwards. Obviously, I’m using the solution for real – the real code has it right. Not sure how I transposed it wrong.

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I just pinched this code (knowing very little JS) and swore for a while because it wouldn’t work.

Copy and paste into TextMate resulting in some weird versions of apostrophes and quote marks, as if it was using smart quotes. I had to delete them all and retype them manually to get it to work.

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