function toggleDivHAll()
{
    var i;
    for(i=1;i<=4;i++)
    {
        toggleDivH("ul" + i);
    }
}

function toggleDivH(DivName)
{
    with(getobj(DivName).style)
    {
        display = "none";
    }
}

function toggleDivV(DivName)
{
    with(getobj(DivName).style)
    {
        display = "block";
    }
}

function getobj(id){
	return document.getElementById(id);
}