code: function toPersian(oGregorian) {
  		var iJulianDayNumber = g2d(oGregorian.year, oGregorian.month + 1, oGregorian.day);
  		return d2j(iJulianDayNumber);
  	}
docs: Calculate Persian date from gregorian
  
  @param {object} oGregorian a JS object containing day, month and year in the gregorian calendar
  @private