function showHideLanguageBookmark(shownElement,hiddenElement1,hiddenElement2,hiddenElement3 ) {
    document.getElementById(shownElement).style.display = "block";
    document.getElementById(hiddenElement1).style.display = "none";
    document.getElementById(hiddenElement2).style.display = "none";
    document.getElementById(hiddenElement3).style.display = "none";
}
function disable(id){
    if (document.getElementById(id).disabled==true)
        document.getElementById(id).disabled=false;
    else
        document.getElementById(id).disabled=true;
}
function addElements(){
    var oInputFile = document.createElement('input');
    var oBr = document.createElement('br');
    oInputFile.setAttribute('type','file');
    oInputFile.setAttribute("name","image[]");
    oInputFile.setAttribute("id","id"+i);
    document.getElementById('child').appendChild(oInputFile);
    document.getElementById('child').appendChild(oBr);
}

function tmp(){

    var num = document.getElementById('numofimages').selectedIndex;
    var oDiv = document.getElementById("child");
    oDiv.parentNode.removeChild(oDiv);
    var oDiv = document.createElement('div');
    oDiv.setAttribute("name","child");
    oDiv.setAttribute("id","child");
    document.getElementById('parent').appendChild(oDiv);

    for(i=1;i<=num;i++){
        var oInputFile = document.createElement('input');
        oInputFile.setAttribute('type','file');
        oInputFile.setAttribute("class","upload");
        oInputFile.setAttribute("name","image"+i);
        oInputFile.setAttribute("id","id"+i);
        document.getElementById('child').appendChild(oInputFile);
    }
}