realtime preview is working. but save to object when preview

app/assets/javascripts/inc/modal-preview.js

@@ -0,0 +1,15 @@
+//Preview need a link in form as Ex and a corresponding PUT action in controller
+//Ex preview trigger:
+// <%= link_to "NewPreview", realtime_preview_admin_ad_banner_path(ad_banner_tab) , :class=>'preview_trigger'%>
+
+$(document).ready(function() {
+	$("a.preview_trigger").click(function(){
+		$(this).after("<p id='show_preview'></p>");
+		$.ajax({
+			type:"PUT",
+			url:$(this).attr("href"),
+			data:$(this).parents("form").serialize()
+			}).done(function(){ $("#"+start_modal_with_id).modal('show');});  
+			return false;}
+		);
+});