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var midPoint:Number = Math.floor(zbuffer.length / 2);	
		var arrayWidth:Number = zbuffer.length;
		while(arrayWidth > 1)
		{		
			if(zBuffer[midPoint] > Zrx)
			{
				midPoint -= Math.floor(midPoint / 2);

			}
			else
			{
				midPoint += Math.floor(midPoint / 2);
			}
			arrayWidth /= 2; 
			//trace(arrayWidth);
		}
 		//trace(midPoint);
		zbuffer.splice(midPoint,0,p);