// JavaScript Document
var tt='start';
var ii='start';
function turnit(ss,bb) {
if (ss+ ".style.display=\"none\";") {
 if(tt!='start') eval(tt+ ".style.display=\"none\";");
    if(ii!='start') ii.src="";
   eval(ss+ ".style.display=\"\";");
    tt=ss;
    ii=bb;
    bb.src="";
 }
  else {
    eval(ss+ ".style.display=\"none\";");
    bb.src="";
  }
}