function ShowInvest(a,b)
{ 
 for(i=1;i<=b;i++) 
 {
  eval("out" + i).style.display="none";
  eval("lay"+i+".style.backgroundImage='url(\"ico\/ico_item_2bg.gif)\';");
 }
 eval("lay"+a+".style.backgroundImage='url(\"ico\/ico_item_1bg.gif)\';");
 eval("out" + a).style.display="";
}