Malceff,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(function() {
$(document).on("change", ".select_one_item_for_delete", function() {
var a = $(".select_one_item_for_delete:checked"),
a = $.map(a, function(a) {
return $(a).data("id")
});
$("#temp").text(a) // $("#temp").text(a.join(' '))
})
});
</script>
</head>
<body>
<input type='checkbox' class='select_one_item_for_delete' data-id='1' />
<input type='checkbox' class='select_one_item_for_delete' data-id='2' />
<div id='temp'></div>
</body>
</html>