T_left = "";
T_rght = "";

function left()
{
parent.mid.scrollBy(-10,0);
T_left = setTimeout("left()",10);
}

function end_left()
{
clearTimeout(T_left);
}

function end_fastleft()
{
clearTimeout(T_fastleft);
}

function rght()
{
parent.mid.scrollBy(10,0);
T_rght = setTimeout("rght()",10);
}

function end_rght()
{
clearTimeout(T_rght);
}


function eraseNavButtons() {
parent.frames['bot'].window.location.href = "STP_bot_nonnav.htm";
}



function writeNavButtons() {
parent.frames['bot'].window.location.href = "STP_bot_nav.htm";
}




function loadContents() {
parent.frames['mid'].window.location.href = "STP_mid_cont.htm";
}