function fetchList(ss){
    var select = document.getElementById("storeid"); 
    var options = ss; 
    while (select.options[1]) {
        select.removeChild(select.options[1]);
    }
    for(var i = 0; i < options.length; i++) {
        var opt = options[i];
        var el = document.createElement("option");
        el.textContent = opt;
        el.value = opt;
        select.appendChild(el);   
    }
}
This way I am able to display the list in the drop down,so how can I display check boxes in the options for multiple selection?