// bpref = tab body prefix, hpref = tab header prefix


bpref='box';
hpref="head";
id_max=10;

str = location.search;
str = str.substring(1,str.length);
 
function seltab(selected) {
	
	
if(!selected){
	if(!str){
		
		selected=1;
		
		}else{
			selected=str;
			}
	
	}
	
  if (! document.getElementById) return;
  for (i = 0; i <= id_max; i++) {
    if (! document.getElementById(bpref + i)) continue;
    if (i == selected) {
      document.getElementById(bpref + i).style.visibility = "visible";
      document.getElementById(bpref + i).style.position = "";
	  document.getElementById("h" + i).className = "on";
    } else {
      document.getElementById(bpref + i).style.visibility = "hidden";
      document.getElementById(bpref + i).style.position = "absolute";
	  document.getElementById("h" + i).className = "";
    }
  }
}