function showMore(melyiket)
{
if (!document.getElementById(melyiket)) return;

if(document.getElementById(melyiket).style.display == "none")
{
 document.getElementById(melyiket).style.display = "";
 document.getElementById('nyil_'+melyiket).src = "images_s1/spacer.gif";
}
else
{
 document.getElementById(melyiket).style.display = "none";
 document.getElementById('nyil_'+melyiket).src = "images_s1/graf_nyil.gif";
}
}