prova cosi:
codice:
<script type="text/javascript">
function openFullScreen(p) {
var w = screen.availWidth;
var h = screen.availHeight;
pop = window.open(p, '', 'top=0,left=0,width='+w+',height='+h+',scrollbars=no');
}
</script>

il richiamo:

<map name="Map">
<area shape="rect" coords="126,203,210,215" href="javascript:openFullScreen('da.html')">
</map>