@php


    $params = Request::all();
    unset($params['first_tab']);
    $sort_mode = Request::get('sort_mode');
    $sort_column = Request::get('sort_column');
    $defualt_sort_mode = "asc";
    $next_sort_mode = "asc";
    if($sort_mode=='asc' || $sort_mode=='desc'){}
    else
        $sort_mode = null;
    if($sort_mode=="asc")
        $next_sort_mode="desc";
    elseif ($sort_mode=="desc")
        $next_sort_mode="";
@endphp

<form id="list_form" action="{{$current_route}}" method="get" >

    @foreach ($params as $key=>$value)
        @if($key!="sort_column" && $key!="sort_mode" && $key!="list_action_name")
            <input  type="hidden"  name="{{$key}}" value="{{$value}}"/>
        @endif
    @endforeach



    @if($sort_column==$current_column)
        <input  type="hidden"  name="sort_mode" value="{{$next_sort_mode}}"/>
    @else
        <input  type="hidden"  name="sort_mode" value="{{$defualt_sort_mode}}"/>
    @endif
    <input  type="hidden"  name="sort_column" value="{{$current_column}}"/>

    <button style="background-color: Transparent;background-repeat:no-repeat;border: none;cursor:pointer;overflow: hidden;outline:none;"
            type="submit" id="table_header_submit"  >
        <a><b>
        <span >
            @if($sort_column==$current_column && $sort_mode=='desc')
                ▼
            @else
                @if($sort_column==$current_column && $sort_mode=='asc')
                    ▲
                @endif
            @endif
            &nbsp;{{$current_title}}
        </span>
            </b>
        </a>

    </button>
</form>