function arrayToString(arr) {
        return str = 'new Array("' + arr.join('", "') + '")';
}
 

function someFunction(someArray) {
    //do whatever here
}

function anotherFunction() {
    var myArray = new Array(1, 2, 3, 4, 5, 6, 7);
    var arrayString = arrayToString(myArray);
    setTimeout("someFunction(" + arrayString + ")");
}