Access Variable in Function

[dizzy]

Hi im trying to access a variable from a function i can acces it in the fuction but not outside:

<input type="submit" value="Do whatever" onclick="javascript:
		
		 usePointFromPostcode('<?=$aPostCode;?>',
		  
		 function (point) {
			 			 
			MeLat=point.lat();
			MeLon=point.lng();
			
			 alert('Latitude: ' + MeLat+ '\nLongitude: ' + MeLon); 
			   
		 	   return MeLat;      
		      }  		      
		    )
		      
		      " />
		      
		<script type="text/javascript">			   
		document.write(MeLat);
		</script>

i can get the alert to work but not the document.write(MeLat);


THANKS IN ADVANCE
DIZZY

[dizzy]

Solved (My Fault)