if(qx.lang.Array.contains(prefArray, hostName)){\r
qx.lang.Array.remove(prefArray, hostName);\r
agentNode.setIcon("org.argeo.slc.ria/computer.png");\r
if(qx.lang.Array.contains(prefArray, hostName)){\r
qx.lang.Array.remove(prefArray, hostName);\r
agentNode.setIcon("org.argeo.slc.ria/computer.png");\r