function OpenDoc (myhref,myname,x,y)
 {
  if(x==0) dx = 805; else dx=x+25;
  if(y==0) dy = 605; else dy=y+25;
  oImgView = open(myhref, myname, 'toolbar=no,menubar=no,scrollbars=yes,resizable=no,left=10, top=10, width='+dx+', height='+dy+'');//
  oImgView.focus();
  return false;
 }