function alter_class_name(activ_class)
{
    active_class_name = 'tabactive';
    class_names = new Array('li_tab1', 'li_tab2', 'li_tab3', 'li_tab4', 'li_tab5');

    for (i=0; i<class_names.length; i++)
    {
        if ($(class_names[i]))
        {
            if (class_names[i] == activ_class)
            {
                $(class_names[i]).addClass(active_class_name);
            }else
            {
                //if ($(class_names[i]).hasClassName(active_class_name))
                //{
                    $(class_names[i]).removeClass(active_class_name);
                //}
            }
        }
    }
}

function alter_element_styles(activ_class)
{
    class_names = new Array('tab1', 'tab2', 'tab3', 'tab4', 'tab5');

    for (i=0; i<class_names.length; i++)
    {
        if ($(class_names[i]))
        {
            if (class_names[i] == activ_class)
            {
                $(class_names[i]).setStyle('display', 'block');
            }else
            {
                $(class_names[i]).setStyle('display', 'none');
            }
        }
    }
}

function alter_reservare_button(curtab)
{
	if (curtab == 'tab3')
	{
		//$('reservare_button').setStyle('visibility', 'hidden');
	}else
	{
		//$('reservare_button').setStyle('visibility', 'visible');
	}
}


function showTab(tab) {

    switch(tab) {

        case "tab1":
            alter_element_styles('tab1');
            alter_class_name('li_tab1');
            alter_reservare_button('tab1');
            break;

        case "tab2":
            alter_element_styles('tab2');
            alter_class_name('li_tab2');
            alter_reservare_button('tab1');
            break;

        case "tab3":
            alter_element_styles('tab3');
            alter_class_name('li_tab3');
            alter_reservare_button('tab3');
            break;

        case "tab4":
            alter_element_styles('tab4');
            alter_class_name('li_tab4');
            alter_reservare_button('tab1');
            break;
        case "tab5":
            alter_element_styles('tab5');
            alter_class_name('li_tab5');
            alter_reservare_button('tab5');
            break;

    }

}
function set_cur_tab(tab)
{
    $('cur_tab').value = tab;
}