line chart horizontal Axis Points problome

[ITProgrammer985]

Hi all
i am using flex chart and this is the code

<mx:AxisRenderer xmlns:mx="http://www.adobe.com/2006/mxml" tickPlacement="none"
				 labelRotation="50" fontFamily="Myriad Pro" fontSize="15" fontAntiAliasType="normal">
	<mx:labelRenderer>
		<mx:Component>
			<mx:Label >
				<mx:Script>
				<![CDATA[
					import mx.collections.ArrayCollection;
					import com.weightwatchers.framework.vo.LightTrackerDayVO;
					import com.weightwatchers.progressReport.model.ProgressReportModelLocator;
                override public function set data(value:Object):void
                {
                	var daysCollection :ArrayCollection;
                	var day: LightTrackerDayVO;
                	var weeks:ArrayCollection;
                	var number:int;
                	var date:int;
                	var dateTime:int;
                	var month:int;
                	
				   super.data = value;
				   daysCollection = ProgressReportModelLocator.instance.lastFourWeeksDays;
				   
				   if (value != null && value.hasOwnProperty("position"))
				   { 
				   		date =  parseInt(value.value.date);
				   		dateTime = parseInt(value.value.time);
				   		month =  parseInt(value.value.month+1);
				   		for(number=0; number < daysCollection.length ; number++)
						{
							if (number==0 || number==7 ||number==14 ||  number==21)
					   		{
					   			day = ProgressReportModelLocator.instance.lastFourWeeksDays.getItemAt(number)as LightTrackerDayVO;

					   			if (checkDate(day.ApplicableDate.time,dateTime))
						   		{
						   			text  = date+"/"+month;
							   		break;
						   		}
					   		}
							else
							{
						   		text = "";
						   		width = 0;
							}
					   		
						}
				   }
				   else if (value != null && !value.hasOwnProperty("position"))
				   {
				   		text  = date+"/"+month;
				   }
				   /*else if (value != null && !value.hasOwnProperty("position"))
				   {
				   		text  = date+"/"+month;
				   }*/
				   
                }
                
                /**
                * @private
                * 
                */
                private function checkDate(day:int,date:int):Boolean
                {
		   			if (date == day)
			   		{
			   			return true;
			   		}
			   		else
			   		{
			   			return false;
			   		}
                }
                ]]>
                </mx:Script>
			</mx:Label>
		</mx:Component>
	</mx:labelRenderer>
</mx:AxisRenderer>

the problem is the labels in x-axis is appearing in a very small font i tried to chang the font size the font famiy and using gutters nothing worked please any one have a solution
thanks