function showBlock(iBlockId)
{
	document.getElementById('BlockText_' + iBlockId).style.display = "block";
	document.getElementById('Open_' + iBlockId).style.display      = "none";
}


function hideBlock(iBlockId)
{
	document.getElementById('BlockText_' + iBlockId).style.display = "none";
	document.getElementById('Open_' + iBlockId).style.display      = "block";
}