ad_proc -public between {num r1 r2 {includeEdges 0}} {
	return 1 if num between r1 and r2
} { 
	if {$includeEdges} {
		return [expr {$num>=$r1 && $num<=$r2}]
	} else {
		return [expr {$num>$r1 && $num<$r2}]
	}	
}