JQuery :: Used Further Click Function Is Disabled Or Better Only Works To Disable Selection To Gain Again A Skillpoint?

[URL]Example on this site u can test what i mean. I want that when all skillpoints are used further click function is disabled or better only works to disable selection to gain again a skillpoint. On current state u can see that when skill counter is at 0, 2 clicks messes up the selection and u can select further on. my code for each icon looks so far like this:

$("#2").toggle(
function () {
if (counter > 0) {
$("#3").attr("disabled", false).fadeTo("fast", 0.50);

[Code].....