function Volcal() {

   	form = document.myform
	   RoomLength = form.RLength.value
	   RoomWidth = form.RWidth.value
	   RoomDepth = form.RDepth.value/1000
		
    	RoomVolumeStage1=RoomLength*RoomWidth*RoomDepth

      T=Math.pow(10, 1)
      RoomVolume=Math.round(RoomVolumeStage1*T)/T
      
      form.RVolume.value=RoomVolume + " m³"

   }

    function Volcal2() {

   	form = document.myform2
	   SquareCoverage = form.SqCov.value
	   RoomDepth = form.RDepth.value/1000
		
    	RoomVolumeStage1=SquareCoverage*RoomDepth

      T=Math.pow(10, 1)
      RoomVolume=Math.round(RoomVolumeStage1*T)/T
	
      form.RVolume2.value=RoomVolume + " m³"

   }