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    <p><a href="http://www.javascripttoolbox.com/temp/table_cellindex.html" rel="nofollow noreferrer">This sample</a> may help you find your solution. It seems to demonstrate your problem as well as have some sample code to generate a matrix to help you solve it.</p> <p><strong>EDIT:</strong> I liked the puzzle and decided to play with it for a bit, here is a "functioning" example of implementing that sample (although sometimes the table doesn't seem to redraw correctly. This should probably help you get further along the way.</p> <pre><code>function getTableState(t) { var matrix = []; var lookup = {}; var trs = t.getElementsByTagName('TR'); var c; for (var i=0; trs[i]; i++) { lookup[i] = []; for (var j=0; c = trs[i].cells[j]; j++) { var rowIndex = c.parentNode.rowIndex; var rowSpan = c.rowSpan || 1; var colSpan = c.colSpan || 1; var firstAvailCol; // initalized the matrix in this row if needed. if(typeof(matrix[rowIndex])=="undefined") { matrix[rowIndex] = []; } // Find first available column in the first row for (var k=0; k&lt;matrix[rowIndex].length+1; k++) { if (typeof(matrix[rowIndex][k])=="undefined") { firstAvailCol = k; break; } } lookup[rowIndex][c.cellIndex] = firstAvailCol; for (var k=rowIndex; k&lt;rowIndex+rowSpan; k++) { if(typeof(matrix[k])=="undefined") { matrix[k] = []; } var matrixrow = matrix[k]; for (var l=firstAvailCol; l&lt;firstAvailCol+colSpan; l++) { matrixrow[l] = {cell: c, rowIndex: rowIndex}; } } } } // lets build a little object that has some useful funcitons for this table state. return { cellMatrix: matrix, lookupTable: lookup, // returns the "Real" column number from a passed in cell getRealColFromElement: function (cell) { var row = cell.parentNode.rowIndex; var col = cell.cellIndex; return this.lookupTable[row][col]; }, // returns the "point" to insert at for a square in the perceived row/column getPointForRowAndColumn: function (row,col) { var matrixRow = this.cellMatrix[row]; var ret = 0; // lets look at the matrix again - this time any row that shouldn't be in this row doesn't count. for (var i=0; i&lt;col; i++) { if (matrixRow[i].rowIndex == row) ret++; } return ret; } }; } function scheduleClick(e) { if (e.target.className != 'event') return; //Get useful info before deletion var numRows = e.target.rowSpan; var cellIndex = e.target.cellIndex; var rowIndex = e.target.parentNode.rowIndex; var table = e.target.parentNode.parentNode; var tableState = getTableState(table); var colIndex = tableState.getRealColFromElement(e.target); //Deletion e.target.parentNode.deleteCell(cellIndex); //Insert empty cells in each row for(var i = 0; i &lt; numRows; i++) { var row = table.rows[rowIndex + i]; row.insertCell(tableState.getPointForRowAndColumn(rowIndex+i, colIndex)); } } </code></pre>
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    1. COThanks a lot, this is way better, now I am near the solution!
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    2. COI just now realized, there are only rendering problems in Firefox. Other browsers are working.
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    3. COGot it! I feel dumb now. I had no doctype, so I was running in quirks mode in Firefox. Adding a doctype fixed it. Thanks again!
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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