$width=$_REQUEST["width"];
$height=$_REQUEST["height"];
if ( $width < 100 || $width > 10000 )
        $width=700;
if ( $height < 50 || $height > 5000 )
        $height=450;

$nomargin=$_REQUEST["nomargin"];
if ( "1" == $nomargin ) {
        $nomargin=true;
        $noxaxis=true;
} else {
        $nomargin=false;
        $noxaxis=false;
}

// Setup the basic graph
$graph = new Graph($width,$height);
if ( ! $nomargin ) {
        $graph->SetMargin(40,15,30,115);
} else {
        $graph->SetMargin(25,25,10,10);
}