client.lua
function replaceTXD()
txd = engineLoadTXD ( "euros.txd" )
engineImportTXD ( txd, 587 )
end
addEventHandler ( "onClientResourceStart", getResourceRootElement(getThisResource()), replaceTXD)
meta.xml
<meta>
<script src="client.lua" type="client" />
<file src="euros.txd" />
</meta>