if(Function.prototype.apply == null){
Function.prototype.apply = function(thisObj, args){
var a =[];
for(var i=0;i<args.length;i++){
a[i] = "args[" + i + "]";
}
thisObj.__apply__ = this;
a="thisObj.__apply__(" + a.join(",") +")";
var r = eval(a);
delete thisObj.__apply__;
return r;
}
}
if(Function.prototype.call==null){
Function.prototype.call=function(thisObj){
var args=[]; 
for(var i=1;i<arguments.length;i++){
args[i-1] = arguments[i];
}
return this.apply(thisObj, args);
}
}
if(Array.prototype.splice == null){
Array.prototype.splice = function(index, howMany){
var a = this.slice(0, index);
var e = this.slice(index + howMany, this.length);
var r = this.slice(index, index+howMany);
this.length=0;
for(var i=0;i<a.length;i++){
this[this.length] = a[i];
}
for(var i=2;i<arguments.length;i++){
this[this.length] = arguments[i];
}
for(var i=0;i<e.length;i++){
this[this.length] = e[i];
}
return r;
}
}
if(Array.prototype.pop == null){
Array.prototype.pop = function(){
var e=this[this.length-1];
this.length -= 1;
return e;
}
}
if(Array.prototype.push == null){
Array.prototype.push = function(){
for(var i=0;i<arguments.length;i++){
this[this.length] = arguments[i];
}
return this.length;
}
}
if(Array.prototype.shift == null){
Array.prototype.shift = function(){
var e = this[0];
for(var i=1;i<this.length;i++){
this[i-1] = this[i];
}
this.length -= 1;
return e;
}
}
if(Array.prototype.unshift == null){
Array.prototype.unshift = function(){
var a=[]
for(var i=0;i<arguments.length;i++){
a[i] = arguments[i];
}
for(var i=0;i<this.length;i++){
a[a.length] = this[i];
}
this.length=a.length;
for(var i=0;i<a.length;i++){
this[i] = a[i];
}
return this.length;
}
}
if(Number.prototype.toFixed == null){
Number.prototype.toFixed = function(d){
var n = this;
d = d || 0;
var f = Math.pow(10, d);
n = Math.round (f * n) / f;
n = (n >= 0) ? n+Math.pow(10, -(d+1)) : n-Math.pow(10, -(d+1));
n += '';
return d == 0 ? n.substring(0, n.indexOf('.')) : n.substring(0, n.indexOf('.') + d + 1);
}
}
if(Number.prototype.toExponential == null){
Number.prototype.toExponential = function(d){
var n = this;
var e = 0;
if (n != 0){
e = Math.floor(Math.log(Math.abs(n)) / Math.LN10);
}
n /= Math.pow(10, e);
if (isFinite(d)){
if (Math.abs(n) + 5*Math.pow(10, -(d+1)) >= 10.0){
n /= 10;
e += 1;
}
n = n.toFixed(d);
}
n += "e";
if (e >= 0){
n += "+";
}
n += e;
return n;
}
}