effectiveMinWidthOfSpannedCols=0; effectiveMaxWidthOfSpannedCols=0;
inline SpanInfo::SpanInfo(PRInt32 aSpan, nscoord aMinWidth, nscoord aDesiredWidth)  : initialColSpan(aSpan){  span = aSpan;  cellMinWidth = aMinWidth;  cellDesiredWidth = aDesiredWidth;}