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function moveIcon(ui,top) {

    ob = ui["draggable"][0]["id"];
    level = getIconsPlace(ob, top);
    left = ((level-1) * step) + icon_down;

    pos = getLeftPX(ob);
    
    pos_level = 0;
    
    // check icon position
    if(pos < 58) {
        pos_level = 0;
    } else if(pos > 58 && pos < 83) {
        pos_level = 1;
    } else if(pos > 83 && pos < 108) {
        pos_level = 2;
    } else if(pos > 108 && pos < 133) {
        pos_level = 3;
    } else if(pos > 133 && pos < 158) {
        pos_level = 4;
    } else if(pos > 158) {
        pos_level = 5;
    } 
        
    pos_left = ((pos_level) * step) + icon_down;
    left = ((level-1) * step) + icon_down;
    if(left > pos_left) {
        left = pos_left;
    }

    $("#" + ui["draggable"][0]["id"]).css("left", left + "px");
    $("#" + ui["draggable"][0]["id"]).css("top", top + "px");
    
    changePosition();
    getResult();
}