Its fairly straight forward but takes a few steps.
First off, this works for me in Chrome. Not tried it any other browser, so dont say it doesnt work for you unless youre using chrome.
Create a list with all your friends in it.
To do this, setup a new list and when selecting your friends put:
Code:
javascript:elms=document.getElementById('friends').getElementsByTagName('li');for(var fid in elms){if(typeof elms[fid] === 'object'){fs.click(elms[fid]);}}
in the address bar and click enter... It will take a while to load
when you're happy that the list has been created, go to your page and select 'Suggest to Friends'
there is an option to choose friends from a certain list, click the list you have just made
there will be a select all option in the top right of the pop up, click it and send to all your buddies
Now, that wasnt too hard was it.