Random Alpha String

Random string generator containing alpha lower and upper case characters only

by greatbigmassive

HTML

<textarea id='foo' style='width:100%;height:200px'></textarea>

JavaScript

function randString(x){
    var s = "";
    while(s.length<x&&x>0){
        var r = Math.random();
        s+= String.fromCharCode(Math.floor(r*26) + (r>0.5?97:65));
    }
    return s;
}

document.getElementById("foo").value = randString(10);