function DOM(n) {return 'document.getElementById("'+n+'")';}


function shide(i)
{
   var id;
   id = "m"+i;   eval(DOM(id)+".style.display='none'");
}
function sshow(i)
{
   var id;
   id = "m"+i;   eval(DOM(id)+".style.display='block'");
}