Auto-populate a SharePoint field using a URL Parameter

setfromurl.html

<script src="/kitsite/Files/jquery-1.11.0.min.js"></script>
<script src="/kitsite/Files/sputility.min.js"></script>
<script>
// url parsing from http://stackoverflow.com/a/2880929/98933
var urlParams;
(window.onpopstate = function () {
	var match,
		pl     = /\+/g,  // Regex for replacing addition symbol with a space
		search = /([^&=]+)=?([^&]*)/g,
		decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); },
		query  = window.location.search;
	// fix for sharepoint 2013 URLs which use the hash
	if (query === '') {
		query = window.location.hash.substring(window.location.hash.indexOf('?'));
	}
	query = query.substring(1);
	urlParams = {};
	while (match = search.exec(query))
	   urlParams[decode(match[1])] = decode(match[2]);
})();

// wait for the window to load
$(window).load(function () {
	try {
		var urlValue = urlParams['projectID'];
		SPUtility.GetSPField('Project ID').SetValue(urlValue).MakeReadOnly();
	} catch (ex) {
		alert(ex.toString());
	}
});
</script>