From ProSamHDx with <3

var string = "my name is sam";

var x = 0;

var result = "";
while(x < string.split(" ").length) {
    var segment = string.split(" ")[x];
segment = segment.charAt(0).toUpperCase() + segment.slice(1);
    document.getElementById("output").innerHTML += segment + " ";
  x++;
}