var options = $('#regionsList option');
var array_option_v2 = new Array();
jQuery.each(options, function(index, value) {
var span = document.createElement('span');
jQuery(span).data('option-value',jQuery(value).val());
jQuery(span).html(jQuery(value).text())
array_option_v2.push(span);
})
$("#input-region-name").autocomplete({
source: array_option_v2 ,
minLength: 2
});