function popup(url){
    var id=Math.floor(Math.random()*101);

    window.open(url, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width=640,height=640');
}

function popupsc(url){
    var id=Math.floor(Math.random()*101);

    window.open(url, id, 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=650,height=640');
}

function popup_ankete(url){
    var id=Math.floor(Math.random()*101);

    window.open(url, id, 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width=400,height=200');
}

function popup_video(idv){

    var id=Math.floor(Math.random()*101);

    window.open("./inc/video.php?id="+ idv, id, "toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=450,height=395");

}

function popup_s(url){
 window.open (url, "popup","menubar=0,resizable=1,width=340,height=20"); 
}

function change_div(from, to){
    document.getElementById(from).style.display = 'none';
    document.getElementById(to).style.display = 'block';
}