function chColor(element, state){
    if(state == 1){
        element.style.backgroundColor = "#202020";
        element.style.borderColor = "#505050";
    }
    else{
        element.style.backgroundColor = "#505050";
        element.style.borderColor = "#808080";
    }
}

function opengal(name){
    x = (screen.width - 800) / 2; y = (screen.height - 600) / 2;
//page=;
    win = window.open("./gal_"+name+".html","galerie", "width=800, height=600, top=0");
    win.moveTo(x,y);
    win.document.gal = name;
}