myLabel:
for(var i=0; i<10; i++) {
  if(i==0) continue myLabel; //start over for some reason
}

var x, y;

outer: for (x = 0; x < 10; ++x) {
    for (y = 0; y < 10; ++y) {
       if (checkSomething(x, y)) {
           break outer;
       }
    }
}