Is BST in effect?

gistfile1.txt

function isBSTinEffect(){
  var d = new Date();
	var lSoM;
	// Loop over the 31 days of March for the current year
	for(var i=31; i>0; i--){
		var tmp = new Date(d.getFullYear(), 2, i);
		// If it's Sunday
		if(tmp.getDay() == 0){
			// last Sunday of March
			lSoM = tmp;
			// And stop the loop
			break;
		}
	}
	// Loop over the 31 days of October for the current year
	for(var i=31; i>0; i--){
		var tmp = new Date(d.getFullYear(), 9, i);
		// If it's Sunday
		if(tmp.getDay() == 0){
			// last Sunday of October
			lSoO = tmp;
			// And stop the loop
			break;
		}
	}
	// 0 = DST off (GMT)
	// 1 = DST on  (BST)
	if(d < lSoM || d > lSoO){
		is_bst = false;
		//Ti.API.info('isBSTinEffect BST FALSE');
		return false;
	} else {
		is_bst = true;
		//Ti.API.info('isBSTinEffect BST TRUE');
		return true;
	}
}