.rightColumnBG {
	background-image: url(images/right_bg.gif);
	background-repeat: repeat-y;
	background-position: left top;
}
.leftColumnBG {
	background-image: url(images/left_bg.gif);
	background-repeat: repeat-y;
	background-position: right top;
}
td.stretch { height:100%; vertical-align:top; }
html, body { height:100%; }