This is just a question of approach and ideas, rather than solving an issue.
You know it from Photoshop, where you can add layers of text and images onto each other and transform and move them around to design a complete image.
What do you call this? And do you know some jQuery plugins that does this?
Thank you in advance.
EDIT:
I don’t need any other Photoshop feature, as blending, filters etc.
Update
You should have a look at jQuery-UI draggable and resizable.
Using those on layers (distinct
<div>,<img>or whatever tag elements) you can simulate that..Adding transparent-background
<textarea>elements in the mix, and you can have text as well..something like http://jsfiddle.net/MrzsG/
original answer
You can do that (minus the layer blending effects) with CSS positioning and opacity..
example at http://jsfiddle.net/gUYb3/1/
For the blending effects you would need to create the algorithms and use canvas drawing..