function headerToImage()
{
	var aHeader, oTextNode;
	var oHeaderNode = { "h1":["label"], "h2":["label"], "h3":["label","askquestion"], "h4":["label"] };
	for ( var sNode in oHeaderNode )
	{
		aHeader = document.getElementsByTagName( sNode );
		for ( var i = 0; i < oHeaderNode[ sNode ].length; ++i )
			for ( var j = 0; j < aHeader.length; ++j )
				if ( aHeader[ j ].className.match( new RegExp( oHeaderNode[ sNode ][ i ] ) ) && aHeader[ j ].firstChild && aHeader[ j ].firstChild.nodeType == 3 )
				{
					var oContainer = document.createElement( "div" );
					var oImage     = document.createElement( "img" );
					aHeader[ j ].parentNode.insertBefore( oContainer, aHeader[ j ] );
					aHeader[ j ].style.display = "none";
					oImage.src = "/assets/label.php/" + oHeaderNode[ sNode ][ i ] + "/" + escape( aHeader[ j ].firstChild.nodeValue );
					oContainer.appendChild( oImage );
				}
	}
}