<TMPL_IF NAME="SKIN_BG">
<style>
html, body {
background: url("<TMPL_VAR NAME="SKIN_PATH">/common/backgrounds/<TMPL_VAR NAME="SKIN_BG">") no-repeat center fixed;
background-size: cover;
}
</style>
</TMPL_IF>
<TMPL_IF NAME="SKIN_BG">
<style>
html, body {
background: url("<TMPL_VAR NAME="SKIN_PATH">/common/backgrounds/<TMPL_VAR NAME="SKIN_BG">") no-repeat center fixed;
background-size: cover;
}
</style>
</TMPL_IF>