Whats that text you can put in the address bar that can change around the page text?

[tasty-man]

Long story. I need that line that you put in the address bar that can change around text and everything. What is it?

[Vexont]

javascript:%20document.body.contentEditable%20=%20'true';%20document.designMode%20=%20'on';%20void%200;
Just pop that in place of everything in the address bar and have fun.