function expandit(id) {
    if(document.getElementById(id).style.display=="block") {
	document.getElementById(id).style.display="none";
	document.getElementById(id+"image").src="static/images/plus.gif";
    } else {
	document.getElementById(id).style.display="block";
	document.getElementById(id+"image").src="static/images/minus.gif";
    }
}

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";
 }
}

function select_browsers(selection) {
  for (s=0; s<=selection.length; s++) {
    if (selection.charAt(s)=='+')
      document.forms['startform'].elements[s+1].checked='checked';
    if (selection.charAt(s)=='-')
      document.forms['startform'].elements[s+1].checked='';
  }
}