if (document.images) {
	dbu = new Image
	dbm = new Image
	dbd = new Image
	odbu = new Image
	odbm = new Image
	odbd = new Image
	dbu.src = "bulup.gif"
	odbu.src = "butup.gif" 
	dbm.src = "bulmit.gif"
	odbm.src = "butmit.gif"
	dbd.src = "buldown.gif"
	odbd.src = "butdown.gif"
}
else {
	dbu=""
	odbu=""
	dbm=""
	odbm=""
	dbd=""
	odbd=""
	document.d1=""
	document.d2=""
	document.d3=""
	document.d4=""
	document.d5=""
	document.d6=""
	document.d7=""
	document.d8=""
	document.d9=""
	document.d10=""
	document.d11=""
	document.d12=""
	document.d14=""	
	document.d15=""	
	document.d16=""
	document.d17=""	
	document.d18=""	
	document.d19=""	
	document.d20=""	
	document.d21=""	
	document.d22=""	
	document.d23=""	
	document.d24=""	
	document.d25=""	
	document.d26=""	
	document.d27=""	
	document.d28=""	
	document.d29=""	
}