function clk(txt) {
    //alert(txt);
    var hidetab
    hidetab = document.getElementById('Div1');
    hidetab.style.display = 'none';
    hidetab = document.getElementById('Div2');
    hidetab.style.display = 'none';
    hidetab = document.getElementById('Div3');
    hidetab.style.display = 'none';
    /*
    hidetab = document.getElementById('Div4');
    hidetab.style.display = 'none';
    */
    hidetab = document.getElementById('Div5');
    hidetab.style.display = 'none';
    hidetab = document.getElementById('Div6');
    hidetab.style.display = 'none';
    /*
    document.all.Div1.style.display = 'none';
    document.all.Div2.style.display = 'none';
    document.all.Div3.style.display = 'none';
    document.all.Div4.style.display = 'none';
    document.all.Div5.style.display = 'none';
    document.all.Div6.style.display = 'none';
    */
    var currtab = document.getElementById(txt);
    currtab.style.display = 'block';

    var stxt = "tab" + txt;

    var catalogtab
    catalogtab = document.getElementById('tabDiv1');
    catalogtab.className = 'catalog_tab';
    catalogtab = document.getElementById('tabDiv2');
    catalogtab.className = 'catalog_tab';
    catalogtab = document.getElementById('tabDiv3');
    catalogtab.className = 'catalog_tab';
    /*
    catalogtab = document.getElementById('tabDiv4');
    catalogtab.className = 'catalog_tab';
    */
    catalogtab = document.getElementById('tabDiv5');
    catalogtab.className = 'catalog_tab';
    catalogtab = document.getElementById('tabDiv6');
    catalogtab.className = 'catalog_tab';
    
    /*
    document.all.tabDiv1.className = 'catalog_tab';
    document.all.tabDiv2.className = 'catalog_tab';
    document.all.tabDiv3.className = 'catalog_tab';
    document.all.tabDiv4.className = 'catalog_tab';
    document.all.tabDiv5.className = 'catalog_tab';
    document.all.tabDiv6.className = 'catalog_tab';
    */
    
    var currstl = document.getElementById(stxt);
    currstl.className = 'catalog_tab_selected';

}


function see(i) {
    if (document.getElementById(i).style.display == "none") {
        document.getElementById(i).style.display = "block";
        document.getElementById('img_' + i).src = "img/arr.png";
    }
    else {
        document.getElementById(i).style.display = "none";
        document.getElementById('img_' + i).src = "img/arr_hor.png";
    }

}