define([], function(){
// Alphanumeric/natural sort fn
function naturalSort(a, b) {
    // setup temp-scope variables for comparison evauluation
    var re = /(-?[0-9\.]+)/g,
        x = a.toString().toLowerCase() || '',
        y = b.toString().toLowerCase() || '',
        nC = String.fromCharCode(0),
        xN = x.replace( re, nC + '$1' + nC ).split(nC),
        yN = y.replace( re, nC + '$1' + nC ).split(nC),
        xD = (new Date(x)).getTime(),
        yD = xD ? (new Date(y)).getTime() : null;
    // natural sorting of dates
    if ( yD ) {
        if ( xD < yD ) { return -1; }
        else if ( xD > yD ) { return 1; }
    }
    // natural sorting through split numeric strings and default strings
    var oFxNcL, oFyNcL;
    for ( var cLoc = 0, numS = Math.max(xN.length, yN.length); cLoc < numS; cLoc++ ) {
        oFxNcL = parseFloat(xN[cLoc]) || xN[cLoc];
        oFyNcL = parseFloat(yN[cLoc]) || yN[cLoc];
        if (oFxNcL < oFyNcL) { return -1; }
        else if (oFxNcL > oFyNcL) { return 1; }
    }
    return 0;
}

return naturalSort;
})