function leftOver()
{
document.getElementById("arrow_left_1").src ="/images/arrow_left_1.png";
}

function leftOut()
{
document.getElementById("arrow_left_1").src ="/images/arrow_left.png";
}

function rightOver()
{
document.getElementById("arrow_right_1").src ="/images/arrow_right_1.png";
}

function rightOut()
{
document.getElementById("arrow_right_1").src ="/images/arrow_right.png";
}

function list_down_1()
{
document.getElementById("list_1").click();
}