function ViewDropDown(dropDownID)
{
    document.getElementById("DropDownList" + 1).style.display = "none";
    document.getElementById("DropDownList" + 2).style.display = "none";
    document.getElementById("DropDownList" + 3).style.display = "none";
    document.getElementById("DropDownList" + 4).style.display = "none";
    document.getElementById("DropDownList" + 5).style.display = "none";
    document.getElementById("DropDownList" + 6).style.display = "none";
    document.getElementById("DropDownList" + dropDownID).style.display = "block";
}

 function HideDropDown()
{
    document.getElementById("DropDownList" + 1).style.display = "none";
    document.getElementById("DropDownList" + 2).style.display = "none";
    document.getElementById("DropDownList" + 3).style.display = "none";
    document.getElementById("DropDownList" + 4).style.display = "none";
    document.getElementById("DropDownList" + 5).style.display = "none";
    document.getElementById("DropDownList" + 6).style.display = "none";
}