function showme(blockid){
 	parent.document.getElementById(blockid).style.display = 'block';	
}

function hideme(blockid){
	parent.document.getElementById(blockid).style.display= 'none';
	parent.document.getElementById('vertjoiner').style.display= 'none';
}

function flip(objid,img){
	parent.document.getElementById(objid).src = img;
}