diff --git a/Makefile b/Makefile
index fbebbb3..ee8f565 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@ JSSRC=					\
 	data/DiffStore.js		\
 	data/ObjectStore.js		\
 	data/TimezoneStore.js		\
+	form/TextField.js		\
 	grid/ObjectGrid.js		\
 	panel/InputPanel.js		\
 	panel/LogView.js		\
diff --git a/form/TextField.js b/form/TextField.js
new file mode 100644
index 0000000..91d9742
--- /dev/null
+++ b/form/TextField.js
@@ -0,0 +1,36 @@
+Ext.define('Proxmox.form.Textfield', {
+    extend: 'Ext.form.field.Text',
+    alias: ['widget.proxmoxtextfield'],
+
+    skipEmptyText: true,
+
+    deleteEmpty: false,
+
+    getSubmitData: function() {
+        var me = this,
+            data = null,
+            val;
+        if (!me.disabled && me.submitValue && !me.isFileUpload()) {
+            val = me.getSubmitValue();
+            if (val !== null) {
+                data = {};
+                data[me.getName()] = val;
+            } else if (me.deleteEmpty) {
+		data = {};
+                data['delete'] = me.getName();
+	    }
+        }
+        return data;
+    },
+
+    getSubmitValue: function() {
+	var me = this;
+
+        var value = this.processRawValue(this.getRawValue());
+	if (value !== '') {
+	    return value;
+	}
+
+	return me.skipEmptyText ? null: value;
+    }
+});
diff --git a/node/NetworkEdit.js b/node/NetworkEdit.js
index 3df9dce..f925e0d 100644
--- a/node/NetworkEdit.js
+++ b/node/NetworkEdit.js
@@ -208,14 +208,14 @@ Ext.define('Proxmox.node.NetworkEdit', {
 
 	    column1.push(
 		{
-		    xtype: 'pvetextfield',
+		    xtype: 'proxmoxtextfield',
 		    deleteEmpty: !me.create,
 		    fieldLabel: gettext('IP address'),
 		    vtype: 'IPAddress',
 		    name: 'address'
 		},
 		{
-		    xtype: 'pvetextfield',
+		    xtype: 'proxmoxtextfield',
 		    deleteEmpty: !me.create,
 		    fieldLabel: gettext('Subnet mask'),
 		    vtype: 'IPAddress',
@@ -240,21 +240,21 @@ Ext.define('Proxmox.node.NetworkEdit', {
 		    }
 		},
 		{
-		    xtype: 'pvetextfield',
+		    xtype: 'proxmoxtextfield',
 		    deleteEmpty: !me.create,
 		    fieldLabel: gettext('Gateway'),
 		    vtype: 'IPAddress',
 		    name: 'gateway'
 		},
 		{
-		    xtype: 'pvetextfield',
+		    xtype: 'proxmoxtextfield',
 		    deleteEmpty: !me.create,
 		    fieldLabel: gettext('IPv6 address'),
 		    vtype: 'IP6Address',
 		    name: 'address6'
 		},
 		{
-		    xtype: 'pvetextfield',
+		    xtype: 'proxmoxtextfield',
 		    deleteEmpty: !me.create,
 		    fieldLabel: gettext('Prefix length'),
 		    vtype: 'IP6PrefixLength',
@@ -281,7 +281,7 @@ Ext.define('Proxmox.node.NetworkEdit', {
 		    }
 		},
 		{
-		    xtype: 'pvetextfield',
+		    xtype: 'proxmoxtextfield',
 		    deleteEmpty: !me.create,
 		    fieldLabel: gettext('Gateway'),
 		    vtype: 'IP6Address',