function calculateBMI (mForm)
{
	if ( mForm.weightField.value == "" )
	{
		alert ("تأكد من إدخال القيم")
		return false
	}	
	if ( mForm.heightField.value == "" )
	{
		alert ("تأكد من إدخال القيم")
		return false
	}
	
	result= calculation ( parseFloat (mForm.weightField.value),parseFloat (mForm.heightField.value))
	
	mForm.resultField.value = result.toFixed([2])
 
	if (mForm.resultField.value <18.5)
     mForm.lable.value = "الوزن تحت الطبيعي"
   else if (mForm.resultField.value >=18.5 && mForm.resultField.value <=24.9 )
   	 mForm.lable.value = "مبروك الوزن طبيعي"
   else if (mForm.resultField.value >=25 && mForm.resultField.value <=29.9 )
   	mForm.lable.value = "الوزن فوق الطبيعي"
   else if (mForm.resultField.value >=30)
   	mForm.lable.value = "بدانة مفرطة"
}
function calculation (weight,height)
{
	CmHeight = height / 100 
	return (weight / ( CmHeight * CmHeight ) )
}