diff --git a/grails-app/assets/javascripts/contribution.js b/grails-app/assets/javascripts/contribution.js
index 8b27e73a..2e2d218a 100644
--- a/grails-app/assets/javascripts/contribution.js
+++ b/grails-app/assets/javascripts/contribution.js
@@ -1,133 +1,136 @@
-function instrument() {
-    var availableTags = [
-        "institutionCode",
-        "collectionCode",
-        "catalogNumber",
-        "occurrenceID",
-        "recordNumber"
-    ];
+$(document).ready(function() {
+    function instrument() {
+        var availableTags = [
+            "institutionCode",
+            "collectionCode",
+            "catalogNumber",
+            "occurrenceID",
+            "recordNumber"
+        ];
 
-    function split( val ) {
-        return val.split( /,\s*/ );
-    }
+        function split( val ) {
+            return val.split( /,\s*/ );
+        }
 
-    function extractLast( term ) {
-        return split( term ).pop();
-    }
+        function extractLast( term ) {
+            return split( term ).pop();
+        }
 
-    $( "input#termsForUniqueKey:enabled" )
-        // don't navigate away from the field on tab when selecting an item
-        .bind( "keydown", function( event ) {
-            if ( event.keyCode === $.ui.keyCode.TAB &&
-                $( this ).data( "autocomplete" ).menu.active ) {
-                event.preventDefault();
-            }
-        })
-        .autocomplete({
-            minLength: 0,
-            source: function( request, response ) {
-                // delegate back to autocomplete, but extract the last term
-                response( $.ui.autocomplete.filter(
-                    availableTags, extractLast( request.term ) ) );
-            },
-            focus: function() {
-                // prevent value inserted on focus
-                return false;
-            },
-            select: function( event, ui ) {
-                var terms = split( this.value );
-                // remove the current input
-                terms.pop();
-                // add the selected item
-                terms.push( ui.item.value );
-                // add placeholder to get the comma-and-space at the end
-                terms.push( "" );
-                this.value = terms.join( ", " );
-                return false;
-            }
-        });
-}
+        $( "input#termsForUniqueKey:enabled" )
+            // don't navigate away from the field on tab when selecting an item
+            .bind( "keydown", function( event ) {
+                if ( event.keyCode === $.ui.keyCode.TAB &&
+                    $( this ).data( "autocomplete" ).menu.active ) {
+                    event.preventDefault();
+                }
+            })
+            .autocomplete({
+                minLength: 0,
+                source: function( request, response ) {
+                    // delegate back to autocomplete, but extract the last term
+                    response( $.ui.autocomplete.filter(
+                        availableTags, extractLast( request.term ) ) );
+                },
+                focus: function() {
+                    // prevent value inserted on focus
+                    return false;
+                },
+                select: function( event, ui ) {
+                    var terms = split( this.value );
+                    // remove the current input
+                    terms.pop();
+                    // add the selected item
+                    terms.push( ui.item.value );
+                    // add placeholder to get the comma-and-space at the end
+                    terms.push( "" );
+                    this.value = terms.join( ", " );
+                    return false;
+                }
+            });
+    }
 
-function changeProtocol() {
-    var protocol = $('#protocolSelector').val();
-    // remove autocomplete binding
-    // $('input#termsForUniqueKey:enabled').autocomplete('destroy');
-    // $('input#termsForUniqueKey:enabled').unbind('keydown');
-    // clear all
-    $('div.labile').css('display','none');
-    $('div.labile input,textArea').attr('disabled','true');
+    function changeProtocol() {
+        var protocol = $('#protocolSelector').val();
+        // remove autocomplete binding
+        // $('input#termsForUniqueKey:enabled').autocomplete('destroy');
+        // $('input#termsForUniqueKey:enabled').unbind('keydown');
+        // clear all
+        $('div.labile').css('display','none');
+        $('div.labile input,textArea').attr('disabled','true');
 
-    // show the selected
-    console.log("Displaying protocol : " + protocol);
-    $.each(connectionParameters, function(key, obj) {
-        $.each(obj, function(j, p) {
-            if (p == protocol) {
-                $('div#connection_' + key).css('display','block');
-                $('div#connection_' + key).removeAttr('style');
-                $('div#connection_' + key + ' input,textArea').removeAttr('disabled');
-            }
+        // show the selected
+        console.log("Displaying protocol : " + protocol);
+        $.each(connectionParameters, function(key, obj) {
+            $.each(obj, function(j, p) {
+                if (p == protocol) {
+                    $('div#connection_' + key).css('display','block');
+                    $('div#connection_' + key).removeAttr('style');
+                    $('div#connection_' + key + ' input,textArea').removeAttr('disabled');
+                }
+            })
         })
-    })
 
-    // re-enable the autocomplete functionality
-    instrument();
-}
+        // re-enable the autocomplete functionality
+        instrument();
+    }
 
-instrument();
+    instrument();
 //$('[name="start_date"]').datepicker({dateFormat: 'yy-mm-dd'});
-/* this expands lists of urls into an array of text inputs */
+    /* this expands lists of urls into an array of text inputs */
 // create a delete element that removes the element before it and itself
-var $deleteLink = $('<span class="delete btn btn-mini btn-danger"><i class="glyphicon glyphicon-remove glyphicon-white"></i> </span>')
-    .click(function() {
-        $(this).prev().remove();
-        $(this).remove();
-    });
-// handle all urls (including hidden ones)
-var urlInputs = $('input[name="url"]');
-$('input[name="url"]').addClass('input-xxlarge');
-$.each(urlInputs, function(i, obj) {
-    var urls = $(obj).val().split(',');
-    if (urls.length > 1) {
-        // more than one url so create an input for each extra one
-        $.each(urls,function(i,url) {
-            if (i == 0) {
-                // existing input gets the first url
-                $(obj).val(url);
-            }
-            else {
-                // clone the existing field and inject the next value - adding a delete link
-                $(obj).clone()
-                    .val(url.trim())
-                    .css('width','93%')
-                    .addClass('form-control')
-                    .insertAfter($(obj).parent().children('input,span').last())
-                    .after($deleteLink.clone(true));
-            }
-        });
-    }
-});
-/* this injects 'add another' functionality to urls */
-$.each(urlInputs, function(i, obj) {
-    $('<span class="pull-right btn btn-default">Add another</span>')
-        .insertAfter($(obj).parent().children('input,span').last())
+    var $deleteLink = $('<span class="delete btn btn-mini btn-danger"><i class="glyphicon glyphicon-remove glyphicon-white"></i> </span>')
         .click(function() {
-            // clone the original input
-            var $clone = $(obj).clone();
-            $clone.val('');
-            $clone.insertBefore(this);
-            $clone.after($deleteLink.clone(true)); // add delete link
+            $(this).prev().remove();
+            $(this).remove();
         });
-});
-/* this binds the code to add a new term to the list */
-$('#more-terms').click(function() {
-    var term = $('#otherKey').val();
-    // check that term doesn't already exist
-    if ($('#'+term).length > 0) {
-        alert(term + " is already present");
-    }
-    else {
-        var newField = "<div class=\"form-group\"><label for='" + term +"'>" + term + "</label>" +
-            "<input type='text' class='form-control' id='" + term + "' name='" + term + "'/></div>";
-        $('#add-another').parent().append(newField);
-    }
-});
+// handle all urls (including hidden ones)
+    var urlInputs = $('input[name="url"]');
+    $('input[name="url"]').addClass('input-xxlarge');
+    $.each(urlInputs, function(i, obj) {
+        var urls = $(obj).val().split(',');
+        if (urls.length > 1) {
+            // more than one url so create an input for each extra one
+            $.each(urls,function(i,url) {
+                if (i == 0) {
+                    // existing input gets the first url
+                    $(obj).val(url);
+                }
+                else {
+                    // clone the existing field and inject the next value - adding a delete link
+                    $(obj).clone()
+                        .val(url.trim())
+                        .css('width','93%')
+                        .addClass('form-control')
+                        .insertAfter($(obj).parent().children('input,span').last())
+                        .after($deleteLink.clone(true));
+                }
+            });
+        }
+    });
+    /* this injects 'add another' functionality to urls */
+    $.each(urlInputs, function(i, obj) {
+        $('<span class="pull-right btn btn-default">Add another</span>')
+            .insertAfter($(obj).parent().children('input,span').last())
+            .click(function() {
+                // clone the original input
+                var $clone = $(obj).clone();
+                $clone.val('');
+                $clone.insertBefore(this);
+                $clone.after($deleteLink.clone(true)); // add delete link
+            });
+    });
+    /* this binds the code to add a new term to the list */
+    $('#more-terms').click(function() {
+        var term = $('#otherKey').val();
+        // check that term doesn't already exist
+        if ($('#'+term).length > 0) {
+            alert(term + " is already present");
+        }
+        else {
+            var newField = "<div class=\"form-group\"><label for='" + term +"'>" + term + "</label>" +
+                "<input type='text' class='form-control' id='" + term + "' name='" + term + "'/></div>";
+            $('#add-another').parent().append(newField);
+        }
+    });
+
+});
\ No newline at end of file