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<script>
$(document).ready(function(){
$(document).on('change','#compId',function() {
var username = $(this).val();
/*var token = $("input[name=_token]").val();
var dataString = 'username='+username+'&token='+token;
*/
var data1={username}
$.ajax({
type: "get",
url : 'depttBranch',
data : data1,
success : function(data){
$('#branchId').html(data);
alert(data);
},error : function(){
alert('out');
}
});
});
});//end of document ready function
</script>