function showlink (linkID) {
    document.getElementById("dFTable1").style.display = "none";
    document.getElementById("dFTable3").style.display = "none";
    document.getElementById("dFTable4").style.display = "none";
    document.getElementById("dFTable5").style.display = "none";
    document.getElementById("dFTable6").style.display = "none";
    document.getElementById("dFTable7").style.display = "none";
    document.getElementById("dFTable8").style.display = "none";
    document.getElementById("dFTable9").style.display = "none";
    document.getElementById("dFTable10").style.display = "none";
    document.getElementById("dFTable11").style.display = "none";
    document.getElementById("dFTable12").style.display = "none";
    document.getElementById("dFTable13").style.display = "none";

	document.getElementById("dFTable" + linkID).style.display = "block";
}