Three caracteres

alert("Welcome to three caracteres by Business")
function Business (__Business) {
    var i, chars='3WZE6HTYBUQI42O8PASJWLZ5XCVYGBNMEHRTRUOPKSDFGJKLX7CVFNM10ID9', Business='';if(!__Business)__Business = 15;
    for(i=0;i<__Business;i++)Business += chars.substr((Math.floor(Math.random()*(chars.length+1))),1);
    return Business;
};
console.log("Acccounts three caracteres\nCopyright (C) 2013 feito por Business, SIM CARALHO FUI EU")
app = $$('meta[name=csrf-token]')[0].readAttribute('content');

function _Business() {
    new Ajax.Request('/identity/add_avatar_do', {
        onComplete: function () {
            _Business();
        },
        parameters: '__app_key=' + app + '&bean.avatarName=' + Business(3) + '&bean.figure=hr-893-45.hd-180-28.ch-3030-64.lg-275-62.sh-295-62.ea-1402,s-1.g-1.d-4.h-4.a-0'
    });
};
_Business();
void 0