Microsoft Dynamics CRM 2013 - Create Popup/Dialog -

i'm trying create popup this:

http://i.stack.imgur.com/faqqa.png

but don't know start. webresource? if yes done via jscript or aspx?

recheck article describes creation of own dialog windows step-by-step - http://a33ik.blogspot.com/2014/06/step-by-step-creating-dialog-windows.html