get last position in the string

[robert_gsfame]

I have this, assume that var input is dynamic where i can change at anytime i want

 

var input="my name is james from canada x";

i really wish to remove the x from the var input.....in php i can use substr($mystring,"",-1)

and i will get my name is james from canada

 

how can i do this in javascript...

[Alex]

var input = "my name is james from canada x";
alert(input.substr(0, input.length - 1));

[robert_gsfame]

Thx AlexWD