Updating single items is list using SPservices - sharepoint

Question

I've been struggling to learn how to use SPservices. What I am trying to accomplish is creating a simple input button that will update my item on my list automatically and refresh my page.
Now where I am getting confused here is that the field I am trying to update is an input box (plain text basically). Users would add their dates on that input box manually in this format 03/09/2015 20:48 (MM/DD/YYYY HH:MM). I want to add that button for each item on that row, so that when a user clicks on it, it calculates the current time and adds an extra hour.
I scavenged the web for similar situation as mine but cant seem to get any examples to work with. Just looking for some help, advice, pointers anything at this point.
$().SPServices({
operation: "UpdateListItems",
listName: "List Name",
ID: ID,
valuepairs: valuePairs,
completefunc: function(xData, Status) {
//Callback
}
});

Answer 1

Figured it out, i created a new column and added the item's ID to it and put the row's TD as display: none;. This would essentially hide but with javascript I can still get its information. I then created another column with my button and gave the class update_button and its working great now.
I know this isnt exactly what I said I wanted but this solves a big portion of this puzzle. Hope this helps someone.
<script language="javascript" type="text/javascript">
$(document).ready(function() {
$(".update_button").click(function() {
var id = $(this).closest("tr").find(".hidden_ID").text();
$().SPServices({
operation: "UpdateListItems",
async: false,
batchCmd: "Update",
listName: "Severities",
ID: id,
valuepairs: [["Notes", "Updated"]],
completefunc: function (xData, Status) {
alert(id);
}
});
});
});
</script>