arrow=new Array()
arrow[0]=new Image(7,7)
arrow[0].src="../pics/ar-tr.png";
arrow[1]=new Image(10,7)
arrow[1].src="../pics/ar-rt.png";
arrow[2]=new Image(10,7)
arrow[2].src="../pics/ar-lt.png";
arrow[3]=new Image(10,7)
arrow[3].src="../pics/ar-rta.png";
arrow[4]=new Image(10,7)
arrow[4].src="../pics/ar-lta.png";

function shglr(m,n) {
  document.images[m].src=arrow[n].src
}

function hdglr(m,n) {
	document.images[m].src=arrow[n].src
}