if(document.all && screen.deviceXDPI){
	fnScaleManually();
}			
function fnScaleManually(){
	var constNorm = 96; 					
	if ((screen.deviceXDPI == screen.logicalXDPI) 
		&& (screen.deviceXDPI > constNorm))
	{						
		document.body.style.fontSize = (constNorm / screen.logicalXDPI) + 'em'
	}			
}