//--------function to check the registration form
function validate_fields()
{
	if(document.patient.textfield.value == "")
	{
		alert("Please Enter Patient ID");
		document.patient.textfield.focus();
		return false;
	}
	
	
	
 	if (document.patient.textfield2.value == "")
	{
		alert ("Please Enter First Name");
		document.patient.textfield2.focus();
		return false;
	}

	
	
	if (document.patient.textfield3.value == "")
	{
		alert ("Please Enter Last Name");
		document.patient.textfield3.focus();
		return false;
	}
	
return true;
}