rem: if ( node.childNodes.length == 0 ) 
add: if ( !node.hasChildNodes() ) 
context: function cvSetNode(node, text){	if ( node )	{		if ( node.childNodes.length == 0 )		{			var textNode = document.createTextNode(text);			node.appendChild(textNode);                   					}		else if ( node.childNodes.length == 1 )			node.childNodes[0].nodeValue = text;		var visible;				if ( text )			visible = true;		else			visible = false;				cvSetVisible(node, visible);	}	return visible;}
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