How To Allow Only alphabet ,space and Å Ä Ö & å ä ö

Question

i want allow user to type only alphabet ,space and Å Ä Ö & å ä ö the given character in Text Box.

alphabet validation and space is working fine but what i have to do for this character Å Ä Ö & å ä ö

 

 Followning is code :- 

 

<script language="javscript" type="text/javascript">

function ValidateAlpha(evt) {

debugger;

evt = (evt) ? evt : event;

var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : ((evt.which) ? evt.which : 0));

if (charCode != 13 && charCode > 31 && (charCode < 37 || charCode > 40) && (charCode < 65 || charCode > 90) && (charCode < 97 || charCode > 122) && (charCode == 196 || charCode == 142))

{

swal("Enter Only Character");

return false;

}

return true;

}

</script>