Step 1 - Simplest dynamic change of div-element via JS. Was most difficult step ... Would not able to find syntax of parseInt for '1111px' yet ... Step 2 - Back and Forth. Step 3 - Movements scenario via funciton chaining. Step 4 - Expand an image Step 5 - Small addvance: Step 4 wrapped in object. Step 6 - Adding opacity. Step 7 - Just more features. Nothing principal: opacity with dimensions with mouseover and click.