var curDiv = '';
function ShowContent(show){
if(curDiv != '')
HideContent(curDiv);
document.getElementById(show).style.visibility = "visible";
document.getElementById(show).style.display = "block";
curDiv = show;
}
function HideContent(hide){
document.getElementById(hide).style.visibility = "hidden";
document.getElementById(hide).style.display = "none";
}