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<script language="javascript">
String.prototype.gblen = function() {
var len = 0;
for (var i=0; i<this.length; i++) {
if (this.charCodeAt(i)>127 || this.charCodeAt(i)==94) {
len += 2;
} else {
len ++;
}
}
return len;
}
String.prototype.gbtrim = function(len, s) {
var str = '';
var sp = s || '';
var len2 = 0;
for (var i=0; i<this.length; i++) {
if (this.charCodeAt(i)>127 || this.charCodeAt(i)==94) {
len2 += 2;
} else {
len2 ++;
}
}
if (len2 <= len) {
return this;
}
len2 = 0;
len = (len > sp.length) ? len-sp.length: len;
for (var i=0; i<this.length; i++) {
if (this.charCodeAt(i)>127 || this.charCodeAt(i)==94) {
len2 += 2;
} else {
len2 ++; 
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