Can I change the background if a field result is great or equal to another field?

Question

I am displaying mySQL in an html table.

I would like to change the TD background color of $qty to red IF $qty >= $max or $qty =< $min.

I

Answer 1

I know you have your answer, but it would be better to just write a custom tablesorter widget that highlights the bad quantity table cells. Here is a demo and the code:

$.tablesorter.addWidget({
    id : "qty",
    format: function(table){
        var i, $td, cur,
            c = table.config,
            cols = c.widgetQty,
            $tr = $(table).children('tbody').children('tr'),
            rows = $tr.length;
        for (i = 0; i < rows; i++){
            $td = $tr.eq(i).find('td');
            cur = parseInt( $td.eq(cols[2]).text(), 10); // current
            if (cur <= parseInt( $td.eq(cols[0]).text(), 10) || // min
                cur >= parseInt( $td.eq(cols[1]).text(), 10) ){ // max
                $td.eq(cols[2]).addClass('badqty');
            }
        }
    }
});

$('table').tablesorter({
    widgets : [ 'zebra', 'qty' ],
    widgetQty : [ 0, 1, 2 ] // min, max, current qty column indexes 
});​