function switchpost(post) {
	postb = document.getElementById('pbody_'+post);
	myimage = document.getElementById('openimage_'+post);
	if(postb.className == 'postbody') {
		postb.className = 'postbody_hide';
		myimage.src = 'http://www.shurtugal.com/ostraciidae/images/expand.png';
	} else {
		postb.className = 'postbody';
		myimage.src = 'http://www.shurtugal.com/ostraciidae/images/collapse.png';
	}
}