diff --git a/admin-dev/themes/default/template/controllers/products/helpers/form/form.tpl b/admin-dev/themes/default/template/controllers/products/helpers/form/form.tpl
index de14313cf..f4b7eea4b 100644
--- a/admin-dev/themes/default/template/controllers/products/helpers/form/form.tpl
+++ b/admin-dev/themes/default/template/controllers/products/helpers/form/form.tpl
@@ -79,11 +79,19 @@
 	<script type="text/javascript">
 		var token = '{$token}';
 		var id_product = {if isset($product->id)}{$product->id}{else}0{/if};
+
+		var product_type_pack = {Product::PTYPE_PACK};
+		var product_type_virtual = {Product::PTYPE_VIRTUAL};
+		var product_type_simple = {Product::PTYPE_SIMPLE};
+
 		var toload = new Array();
 		var empty_pack_msg = '{l s='Pack is empty. You need to add at least one product to the pack before you can save it.'}';
+		var empty_name_msg = '{l s='Product name is empty. You need to enter a name at least for the default language before you can save it.'}';
+		var empty_link_rewrite_msg = '{l s='Friendly URL is empty. You need to enter a friendly url at least for the default language before you can save it.'}';
 		$('#product-tab-content-wait').show();
 		var post_data = {$post_data};
 
+		var product_type;
 		$(document).ready(function()
 		{
 			$('#product-tab-content-wait').show();
@@ -102,8 +110,8 @@
 				$('li.tab-row a[id*="VirtualProduct"]').hide();
 			{/if}
 
-			$('input[name="type_product"]').click(function() {
-
+			$('input[name="type_product"]').click(function()
+			{
 				// Reset settings
 				$('li.tab-row a[id*="Pack"]').hide();
 				$('li.tab-row a[id*="VirtualProduct"]').hide();
@@ -112,8 +120,9 @@
 				$('div.is_virtual_good').hide();
 				$('#is_virtual').val(0);
 				$("#virtual_good_attributes").hide();
-
-				var product_type = $(this).val();
+				
+				// product_type is now global
+				product_type = $(this).val();
 
 				// until a product is added in the pack
 				// if product is PTYPE_PACK, save buttons will be disabled 
@@ -137,12 +146,9 @@
 					$('#condition option[value=new]').removeAttr('selected');
 					$('.stockForVirtualProduct').show();
 					// if pack is enabled, if you choose pack, automatically switch to pack page
-					if ($("#link-Pack:visible").length)
-						handleSaveForPack();
 				}
 				else if (product_type == {Product::PTYPE_VIRTUAL})
 				{
-					enableSave();
 					$('li.tab-row a[id*="VirtualProduct"]').show();
 					$('#is_virtual_good').attr('checked', true);
 					$('#virtual_good').show();
@@ -166,12 +172,13 @@
 				else
 				{
 					// 3rd case : product_type is PTYPE_SIMPLE (0)
-					enableSave();
 					$('li.tab-row a[id*="Shipping"]').show();
 					$('#condition').removeAttr('disabled');
 					$('#condition option[value=new]').removeAttr('selected');
 					$('.stockForVirtualProduct').show();
 				}
+				// this handle the save button displays and warnings
+				handleSaveButtons();
 
 			});
 
@@ -217,16 +224,13 @@
 				}
 				else if (btn_name == "Attachments")
 				{
-					disableSave();
+					handleSaveButtons();
 				}
 				else
 				{
 					$('#desc-product-newCombination').hide();
 					// if pack is enabled, save button are visible only if pack is valid
-					if ($("#link-Pack:visible").length)
-						handleSaveForPack();
-					else
-						enableSave();
+					handleSaveButtons();
 				}
 			});
 
@@ -238,7 +242,7 @@
 
 			$('#product-tab-content-Associations').bind('loaded', function()
 			{
-				enableSave();
+				handleSaveButtons();
 			});
 
 			$('.confirm_leave').live('click', function(){
diff --git a/admin-dev/themes/default/template/controllers/products/pack.tpl b/admin-dev/themes/default/template/controllers/products/pack.tpl
index 74998d041..1afdaf590 100644
--- a/admin-dev/themes/default/template/controllers/products/pack.tpl
+++ b/admin-dev/themes/default/template/controllers/products/pack.tpl
@@ -103,7 +103,8 @@
 			}
 		});
 		// show / hide save buttons
-		handleSaveForPack();
+		// if product has a name
+		handleSaveButtons();
 	}
 
 	function delPackItem(id)
@@ -143,7 +144,7 @@
 		});
 
 		// if no item left in the pack, disable save buttons
-		handleSaveForPack();
+		handleSaveButtons();
 	}
 
 	function getSelectedIds()
diff --git a/js/admin-products.js b/js/admin-products.js
index d05feed48..b4126d731 100644
--- a/js/admin-products.js
+++ b/js/admin-products.js
@@ -310,25 +310,79 @@ function disableSave()
  */
 function enableSave()
 {
-		// if no item left in the pack, disable save buttons
-		if ($("#disablePackMessage").length)
-			$("#disablePackMessage").remove();
-
 		$('#desc-product-save').show();
 		$('#desc-product-save-and-stay').show();
 }
 
-function handleSaveForPack()
+function handleSaveButtons(e)
 {
-	// if no item left in the pack, disable save buttons
-	$("#disablePackMessage").remove();
-	if ($("#inputPackItems").val() == "")
+	msg = [];
+	var i = 0;
+	// relative to type of product
+	if (product_type == product_type_pack)
+		msg[i++] = handleSaveButtonsForPack();
+	else if (product_type == product_type_pack)
+		msg[i++] = handleSaveButtonsForVirtual();
+	else
+		msg[i++] = handleSaveButtonsForSimple();
+	
+	// common for all products
+	// name[defaultlangid]
+	$("#disableSaveMessage").remove();
+	if ($("#name_"+defaultLanguage.id_lang).val() == "")
 	{
-		disableSave();
-		$(".leadin").append('<div id="disablePackMessage" class="warn">' + empty_pack_msg + '</div>');
+		msg[i++] = empty_name_msg;
+	}
+	// friendly_url_[defaultlangid]
+	if ($("#link_rewrite_"+defaultLanguage.id_lang).val() == "")
+		msg[i++] = empty_link_rewrite_msg;
+
+	if (msg.length == 0)
+	{
+		$("#disableSaveMessage").remove();
+		enableSave()
 	}
 	else
-		enableSave();
+	{
+		$("#disableSaveMessage").remove();
+		do_not_save = false;
+		for (var key in msg)
+		{
+			if (msg != "")
+			{
+				if (do_not_save == false)
+				{
+					$(".leadin").append('<div id="disableSaveMessage" class="warn"></div>');
+					warnDiv = $("#disableSaveMessage");
+					do_not_save = true;
+				}
+				warnDiv.append('<p id="'+key+'">'+msg[key]+'</p>');
+			}
+		}
+		if (do_not_save)
+			disableSave();
+		else
+			enableSave();
+	}
+}
+
+function handleSaveButtonsForSimple()
+{
+	return "";
+}
+
+function handleSaveButtonsForVirtual()
+{
+	return "";
+}
+
+function handleSaveButtonsForPack()
+{
+	// if no item left in the pack, disable save buttons
+	if ($("#inputPackItems").val() == "")
+		return empty_pack_msg;
+	else
+		return "";
 }
 
 function enableProductName()
@@ -412,6 +466,20 @@ urlToCall = null;
 
 $(document).ready(function() {
 	updateCurrentText();
+	$("#name_"+defaultLanguage.id_lang+",#link_rewrite_"+defaultLanguage.id_lang)
+		.live("change", function(e)
+		{
+			if(typeof e == KeyboardEvent)
+				if(isArrowKey(e))
+					return;
+			$(this).trigger("handleSaveButtons");
+		});
+	// bind that custom event
+	$("#name_"+defaultLanguage.id_lang+",#link_rewrite_"+defaultLanguage.id_lang)
+		.live("handleSaveButtons", function(e)
+		{
+			handleSaveButtons()
+		});
 	updateFriendlyURL();
 
 	// Pressing enter in an input field should not submit the form
diff --git a/js/admin.js b/js/admin.js
index 202c558f3..4f0b51b73 100644
--- a/js/admin.js
+++ b/js/admin.js
@@ -107,6 +107,8 @@ function copy2friendlyURL()
 	$('#link_rewrite_' + id_language).val(str2url($('#name_' + id_language).val().replace(/^[0-9]+\./, ''), 'UTF-8'));
 	if ($('#friendly-url'))
 		$('#friendly-url').html($('#link_rewrite_' + id_language).val());
+	// trigger onchange event to use anything binded there
+	$('#link_rewrite_' + id_language).change(); 
 	return;
 }
 
@@ -1175,4 +1177,4 @@ function display_action_details(row_id, controller, token, action, params) {
 		current_element.parent().parent().parent().find('.details_'+id).show('fast');
 		current_element.data('opened', true);
 	}
-}
\ No newline at end of file
+}