// tab
function setTab(name,cursel,n){
 for(i=1;i<=n;i++){
  var menu=document.getElementById(name+i);
  var con=document.getElementById("con_"+name+"_"+i);
  menu.className=i==cursel?"hover":"";
  con.style.display=i==cursel?"block":"none";
 }
}

//show hide layer
function showhideline(obj, sType) { 
var oDiv = document.getElementById(obj); 
if (sType == 'show') { oDiv.style.display = 'block';} 
if (sType == 'hide') { oDiv.style.display = 'none';} 
}