Remove the last 16 digits at the end of text

I have a string that looks like this:

[APPLE PIE] Sei Shoujo Sentai Lakers 3 Battle Team Lakers 3 (100% FULL-PIC)_20121104_032834

I want to remove the digits at the end of the string, basically the 16 digits at the end of the string. In the end it should look like this:

[APPLE PIE] Sei Shoujo Sentai Lakers 3 Battle Team Lakers 3 (100% FULL-PIC)

This is my code that I have written so far

var str="[APPLE PIE] Sei Shoujo Sentai Lakers 3 Battle Team Lakers 3 (100% FULL-PIC)_20121104_032834";
var n=str.substr(1,74);
document.write(n);

The problem is the string will be different so each will have different amount of characters. So how I remove the digits at the end of the string in javascript?

You can, instead of hard coding the length of the substring, use the length of the string minus the # of characters you want to remove.

so something like this:


var str = "This is a string with some chars at the end 1234567891234567";
var fixedStr = str.substr(0, str.length-16);