1. String.prototype.gblen = function() {
2. var len = 0;
3. for (var i=0; i<this.length; i++) {
4. if (this.charCodeAt(i)>127 || this.charCodeAt(i)==94) {
5. len += 2;
6. } else {
7. len ++;
8. }
9. }
10. return len;
11. }