Pretty good idea and solution

I dont have much of a need for it myself but when an email adres is posted I would like it to be 'safe' from harvesters
A few notes though (by far the bigger part of this post, dont take it wrong though

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It also changes the output on the editing of a post. In WYSIWYG this means that (atleast with javascript) you cant see the email adress
And is this proper? On HTMl entities it outputs it like this <a href="mailto:%blablabla">adres@bla.com</a> and on javascript (which I admittedly dont know much about, nor do I know about the way harvesters work) it puts in a undisclose followed by a full email link like normal (honestly wondering about how that works

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Heres something that should prove very very proper (if possible to put it with a automated fashion).
<script type='text/javascript'>var a = new Array('s','t','a','r.','o');document.write("<a href='o:"+a[1]+a[0]+a[2]+a[3]+a[4]+"'>"+a[1]+a[0]+a[2]+a[3]+a[4]+"</a>");</script>
This format for an email adress (made this one manually). Any chance of doing it like that? It replaces both the mailto/link and hussles it all up in output making it look (even if it does go past the codes) like random blabber.