function CanvasSize() 
	{ 
	var myWidth = 0, myHeight = 0; 
	if( typeof( window.innerWidth ) == 'number' ) 
		{ 
		//Non-IE 
		//myWidth = window.innerWidth; 
		myHeight = window.innerHeight; 
		} 
	else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) 
		{ 
		//IE 6+ in 'standards compliant mode' 
		//myWidth = document.documentElement.clientWidth; 
		myHeight = document.documentElement.clientHeight; 
		} 
	else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) 
		{ 
		//IE 4 compatible myWidth = document.body.clientWidth; 
		myHeight = document.body.clientHeight; 
		} 
	var cnvH = myHeight - 82;
	document.getElementById('canvas').style.height = cnvH + "px";
	}
      window.onresize = CanvasSize;