New Post: SPGetQueryString Issue

I'm attempting to setup SPGetQueryString to populate a single line of text field. I'm confident in the jquery and spservices references being correct since I did the alert test as well as being able to run this script to populate a drop down menu field and it worked. I am using SharePoint 2013 in IE and Chrome.
Here is the drop code that worked:

$(document).ready(function() {

        var queryStringVals = $().SPServices.SPGetQueryString();
        var supplierID = queryStringVals["SupplierID"];

        $().SPServices.SPComplexToSimpleDropdown({
            columnName: "SupplierID",
        });

        //like :contains but only selects exact matches
        $.expr[':'].textEquals = function(a, i, m) {
            return $(a).text().match("^" + m[3] + "$");
        };

        var selectedSupplierID = $("option:textEquals('" + supplierID + "')").val();
        $("select[title=SupplierID]").val(selectedSupplierID);
        $("select[title=SupplierID]").change(); 

    });

Here is the code I am attempting:

$(document).ready(function() {

        var queryStringVals = $().SPServices.SPGetQueryString();
        var Simple = queryStringVals["Simple"];
});

Debug mode doesn't show me any issues.
Thanks in advance for any help.