Index: trunk/core/admin_templates/js/script.js
===================================================================
diff -u -N -r7635 -r7702
--- trunk/core/admin_templates/js/script.js	(.../script.js)	(revision 7635)
+++ trunk/core/admin_templates/js/script.js	(.../script.js)	(revision 7702)
@@ -1318,3 +1318,41 @@
 	}
 	return x1 + x2;
 }
+
+var last_shown_error = false;
+var errors = new Object();
+var first_error = new Object();
+var fields = new Object();
+var textareas100 = new Array();
+function show_form_error(prefix, field, sticky)
+{
+	if (isset(errors[prefix]) && isset(errors[prefix][field])) {
+		span = document.getElementById('error_msg_'+prefix);
+		span.innerHTML = fields[prefix][field] + ' - ' + errors[prefix][field];
+		if (sticky) last_shown_error = field;
+	}
+}
+function hide_form_error(prefix)
+{
+	span = document.getElementById('error_msg_'+prefix);
+	if (!span) return;
+	span.innerHTML = '<br/>';
+	if (typeof(last_shown_error) != 'undefined' && last_shown_error) {
+		show_form_error(prefix, last_shown_error);
+	}
+}
+function add_form_error(prefix, field, element, error_msg) {
+	if (error_msg != '') {
+		if (typeof(errors[prefix]) == 'undefined') {
+			errors[prefix] = new Object();
+		}
+		errors[prefix][field] = error_msg;
+		document.getElementById(element).onfocus = function() {
+			show_form_error(prefix, field, true)
+		};
+		document.getElementById(element).onblur = function() {last_shown_error = false};
+		if (typeof(first_error[prefix]) == 'undefined' || first_error[prefix] == false) {
+			first_error[prefix] = [field, element];
+		}
+	}
+}
\ No newline at end of file