rem: s.borderBottom = "1px solid " + tw_COLOR_WINDOWFRAME; 
add: s.borderBottom = "1px solid " + tw_COLOR_ACTIVEBORDER; 
context:     _buildColumnHeaders: function() {        var table = document.createElement("table");        var tbody = document.createElement("tbody");        var days = ["S", "M", "T", "W", "T", "F", "S"];        var row = document.createElement("tr");        var s = table.style;        s.height = "17px";        s.borderBottom = "1px solid " + tw_COLOR_WINDOWFRAME;        s.marginLeft = "auto";        s.marginRight = "auto";        for (var i = 0; i < days.length; i++) {            var cell = document.createElement("th");            cell.appendChild(document.createTextNode(days[i]));            row.appendChild(cell);        }        tbody.appendChild(row);        table.appendChild(tbody);        this._box.appendChild(table);        this._columnHeaders = table;    },
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/37796fea05d0eb86951d2f34aedeb66e8b500920/DateBox.js/buggy/src/thinwire/render/web/resources/DateBox.js