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.