TL_EXPD = "title='Click to expand'"
TL_CLPS = "title='Click to collapse'"
IMG_INS_ITEM = "<img src='../images/tree/l_arrow.gif' border='0' align='middle' vspace='1'>"
IMG_INS_PRICE = "<img src='../images/tree/l_arrow.gif' border='0' align='middle' vspace='1'>"
IMG_DEL = "<img src='../images/tree/cross.gif' border='0' align='middle' vspace='1'>"
IMG_UP = "<img src='../images/tree/u_arrow.gif' border='0' align='middle' vspace='1'>"
IMG_DWN = "<img src='../images/tree/d_arrow.gif' border='0' align='middle' vspace='1'>"
IMG_HAND = "<img src='../images/tree/hand.gif' border='0' align='middle' vspace='1'>"