var div_array_trading = new Array("switch_1", "switch_2", "switch_3", "switch_6");
var menu_array_trading = new Array("tab1", "tab2", "tab3", "tab6");
var $tab;
var $div;
var i,j;

function closeEveryDiv(){
    for (i = 0; i < div_array_trading.length; i++)
    	{
    		if (document.getElementById(div_array_trading[i]) && document.getElementById(menu_array_trading[i]))
    			{
		    		document.getElementById(div_array_trading[i]).style.display = 'none';
		    		document.getElementById(menu_array_trading[i]).style.color = '#000';
					document.getElementById(menu_array_trading[i]).style.borderBottom = '1px solid #d0d0d0';
					document.getElementById(menu_array_trading[i]).style.backgroundColor ="#f7f7f7";
    			}
    	}
}

function change_trading_divs(tab,div){
    $tab = tab;
    $div = div;
    closeEveryDiv();
    document.getElementById($div).style.display = 'block';
    var j = document.getElementById($tab);
    j.style.color = "#0097ac";
	j.style.border = "none";
	j.style.backgroundColor = "#fff";
}