function doTrans(iStep, iLast, bPosition){
iCount=(bPosition == 1)? iStep : iCount=iCount+iStep;
if (iCount == iLast+1) iCount=1;
if (iCount == 0) iCount=iLast;
if (IE50 == false) div_Main.filters.item(0).Apply();
sContent="<img src=\"" + document.all["img_" + iCount].src + "\" border=\"0\" galleryimg=\"no\">";
if (document.all["img_" + iCount].title !="") sContent= document.all["img_" + iCount].title + sContent + "</a>";
if (document.all["img_" + iCount].alt !="") sContent= sContent + "<div style=\"padding: 3px; font: 8pt Arial\">" + document.all["img_" + iCount].alt + "</div>";
div_Main.innerHTML="<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"100%\" height=\"100%\"><tr><td width=\"100%\" align=\"center\">" + sContent + "</td></tr></table>";
if (IE50 == false) div_Main.filters.item(0).Play();
}