How do I make livejournal cut?

please help, I've been trying to make one and it wont work. is there a diffrent method for icon posting?

How do I make livejournal cut?
%26lt;lj-cut text="What you want the link to say"%26gt;Here you would put all the text and stuff that you want to be hidden behind the cut. Once you're done with your cut and want to add anything after the link so people will see it on their friends page before clicking the cut link, put %26lt;/lj-cut%26gt;