Rollimg = new Array()
   
Rollimg[0] = new Image(16,16) 
Rollimg[0].src = "images/noarrow.gif" 

Rollimg[1] = new Image(16,16)
Rollimg[1].src = "images/arrow.gif"



function RollOut(imgname) {
	
	if (imgname == 'a1') {
  		document.a1.src = Rollimg[0].src;
	}
	else if (imgname == 'b1') {
		document.b1.src = Rollimg[0].src;
	}
	else if (imgname == 'c1') {
		document.c1.src = Rollimg[0].src;
	}
	else if (imgname == 'd1') {
		document.d1.src = Rollimg[0].src;
	}
	else if (imgname == 'e1') {
		document.e1.src = Rollimg[0].src;
	}
	else if (imgname == 'f1') {
		document.f1.src = Rollimg[0].src;
	}
	else if (imgname == 'a2') {
		document.a2.src = Rollimg[0].src;
	}
	else if (imgname == 'b2') {
		document.b2.src = Rollimg[0].src;
	}
	else if (imgname == 'c2') {
		document.c2.src = Rollimg[0].src;
	}
	else if (imgname == 'd2') {
		document.d2.src = Rollimg[0].src;
	}
  
  	return true;
  	
} 

function RollBack(imgname){
	
  	if (imgname == 'a1') {
  		document.a1.src = Rollimg[1].src;
	}
	else if (imgname == 'b1') {
		document.b1.src = Rollimg[1].src;
	}
	else if (imgname == 'c1') {
		document.c1.src = Rollimg[1].src;
	}
	else if (imgname == 'd1') {
		document.d1.src = Rollimg[1].src;
	}
	else if (imgname == 'e1') {
		document.e1.src = Rollimg[1].src;
	}
	else if (imgname == 'f1') {
		document.f1.src = Rollimg[1].src;
	}
	else if (imgname == 'a2') {
		document.a2.src = Rollimg[1].src;
	}
	else if (imgname == 'b2') {
		document.b2.src = Rollimg[1].src;
	}
	else if (imgname == 'c2') {
		document.c2.src = Rollimg[1].src;
	}
	else if (imgname == 'd2') {
		document.d2.src = Rollimg[1].src;
	}
	
	return true;
	
}