function SelectRadioButton(objId) { var rdbtn = document.getElementById(objId); if (!rdbtn.disabled) rdbtn.checked = true; }

function hidediv(div_id) { try { document.getElementById(div_id).style.display = 'none'; } catch (e) { throw "exception hiding div: " + div_id; } }
function showdiv(div_id) { try { document.getElementById(div_id).style.display = 'block'; } catch (e) { throw "exception showing div: " + div_id; } }

function MilestoneMouseOver(objImage, sDivId) { showdiv(sDivId); objImage.src = objImage.src.replace(".gif", "_on.gif"); }
function MilestoneMouseOut(objImage, sDivId) { hidediv(sDivId); objImage.src = objImage.src.replace("_on.gif", ".gif"); }