var className = "highlightTable";
var rowHighLight = "#E6E1B0";
var colHighLight = "#EEEFE6";
//var rowHighLight = "#F0EDFF";
//var colHighLight = "#F8F5F6";
var rowHighLightReset = "#ffffff";
var colHighLightReset = "#ffffff";

function highlightTables()
{
    if (!document.getElementsByTagName) return;
    var tables = getElementsByClass(className, document, "table")
    var table_length = tables.length;
    for (var i=0; i<table_length; i++)
    {
        var table = tables[i-(table_length-tables.length)];
        var row_count = table.rows.length;
        for ( var j=0; j<row_count; j++ )
        {
            var row = table.rows[j];
            if (row.id == "no-highlighting")
            {
                continue
            }
            if (row.id == "no-highlighting-new-table")
            {
                i++;
                table_length = table_length + 1;
                continue
            }
            row.id = "tb_"+(i+1)+"_row_"+(j+1)+"_";
            var col_count = row.cells.length;
            for ( var k=0; k<row.cells.length; k++ )
            {
                var cell =     row.cells[k];
                if ( cell.getAttribute("colspan") != null )
                    col_count = col_count + (cell.getAttribute("colspan") - 1);
            }
            var col_offset = 0;
            for ( var k=0; k<row.cells.length; k++ )
            {
                var cell = row.cells[k];
                if ( cell.getAttribute("scope") == 2 )
                {
                    cell.id = "tb_"+(i+1)+"_row_"+(j+1)+"_col_"+((k+1)+col_offset)+"_ tb_"+(i+1)+"_row_"+(j+1)+"_col_"+(((k+1)+col_offset)+1)+"_";
                    cell.onmouseover = new Function("highlightMore('"+(j+1)+"','"+((k+1)+col_offset)+"','"+(i+1)+"','"+(row_count)+"','"+(col_count)+"','2');return false");
                    cell.onmouseout = new Function("highlightMoreReset('"+(j+1)+"','"+((k+1)+col_offset)+"','"+(i+1)+"','"+(row_count)+"','"+(col_count)+"','2');return false");
                }
                else
                {
                    if ( cell.getAttribute("colspan") != null )
                    {
                        var ids = "";
                        if ( cell.getAttribute("colspan") == null )
                            colspaner = 1;
                        else
                            colspaner = cell.getAttribute("colspan");
                        for ( z=0;     z<colspaner; z++ )
                            ids = ids + " tb_"+(i+1)+"_row_"+(j+1)+"_col_"+(((k+1)+col_offset)+z)+"_";
                        cell.id = ids;
                        cell.onmouseover = new Function("highlightMore('"+(j+1)+"','"+((k+1)+col_offset)+"','"+(i+1)+"','"+(row_count)+"','"+(col_count)+"','"+colspaner+"');return false");
                        cell.onmouseout = new Function("highlightMoreReset('"+(j+1)+"','"+((k+1)+col_offset)+"','"+(i+1)+"','"+(row_count)+"','"+(col_count)+"','"+colspaner+"');return false");
                    }
                    else
                    {
                        cell.id = "tb_"+(i+1)+"_row_"+(j+1)+"_col_"+((k+1)+col_offset)+"_";
                        cell.onmouseover = new Function("highlight('"+(j+1)+"','"+((k+1)+col_offset)+"','"+(i+1)+"','"+(row_count)+"','"+(col_count)+"');return false");
                        cell.onmouseout = new Function("highlightReset('"+(j+1)+"','"+((k+1)+col_offset)+"','"+(i+1)+"','"+(row_count)+"','"+(col_count)+"');return false");
                    }
                }
                if ( cell.getAttribute("colspan") != null )
                    col_offset = col_offset + (cell.getAttribute("colspan") - 1);
            }
        }
    }
}

function highlightMore(row_id, column_id, table_id, number_of_rows, number_of_columns, cols, rows)
{
    for ( x=0; x<parseInt(cols); x++ )
    {
        c_id = parseInt(column_id) + x;
        highlight(row_id, c_id, table_id, number_of_rows, number_of_columns);
    }
}

function highlightMoreReset(row_id, column_id, table_id, number_of_rows, number_of_columns, cols, rows)
{
    for ( x=0; x<parseInt(cols); x++ )
    {
        c_id = parseInt(column_id) + x;
        highlightReset(row_id, c_id, table_id, number_of_rows, number_of_columns);
    }
}

function highlight(row_id, column_id, table_id, number_of_rows, number_of_columns)
{
    var table;
    if (table_id)
        table = "tb_"+table_id+"_";
    else
        table = '';
    temp_row = document.getElementById(table+"row_"+row_id+"_");
    for ( i = 1; i <= number_of_columns; i++)
    {
        for ( z=0; z<temp_row.cells.length; z++ )
        {
            if ( temp_row.cells[z].id.search(table+"row_"+row_id+"_col_"+i+"_") != -1 )
                temp_row.cells[z].style.backgroundColor = rowHighLight;
        }
    }
    for (i = 1; i <= number_of_rows; i++ )
    {
        if ( i != row_id )
        {
            temp_row = document.getElementById(table+"row_"+i+"_");
            if ( temp_row != null )
            {
                for ( z=0; z<temp_row.cells.length; z++ )
                {
                    if ( temp_row.cells[z].id.search(table+"row_"+i+"_col_"+column_id+"_") != -1 )
                        temp_row.cells[z].style.backgroundColor = colHighLight;
                }
            }
        }
    }
}

function highlightReset(row_id, column_id, table_id, number_of_rows, number_of_columns)
{
    var table;
    if (table_id)
        table = "tb_"+table_id+"_";
    else
        table = '';
    temp_row = document.getElementById(table+"row_"+row_id+"_");
    for ( i = 1; i <= number_of_columns; i++)
    {
        for ( z=0; z<temp_row.cells.length; z++ )
        {
            if ( temp_row.cells[z].id.search(table+"row_"+row_id+"_col_"+i+"_") != -1 )
                temp_row.cells[z].style.backgroundColor = rowHighLightReset;
        }
    }
    for (i = 1; i <= number_of_rows; i++ )
    {
        if ( i != row_id )
        {
            temp_row = document.getElementById(table+"row_"+i+"_");
            if ( temp_row != null )
            {
                for ( z=0; z<temp_row.cells.length; z++ )
                {
                    if ( temp_row.cells[z].id.search(table+"row_"+i+"_col_"+column_id+"_") != -1 )
                        temp_row.cells[z].style.backgroundColor = colHighLightReset;
                }
            }
        }
    }
}

function getElementsByClass(searchClass,node,tag)
{
    var classElements = new Array();
    var els = node.getElementsByTagName(tag);
    var elsLen = els.length;
    var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
    for (i = 0, j = 0; i < elsLen; i++)
    {
        if ( pattern.test(els[i].className) )
        {
            classElements[j] = els[i];
            j++;
        }
    }
    return classElements;
}

function setRowHighlightColor(color)
{
    rowHighLight = color;
}

function setColHighlightColor(color)
{
    colHighLight = color;
}

function highlightCell(tableNumber, rowNumber, columnNumber, type)
{
    cell = document.getElementById("tb_" + tableNumber + "_row_" + rowNumber + "_col_" + columnNumber + "_");
    if( cell )
    {
        if( type == "column" )
        {
            colour = colHighLight;
        }
        else if( type == "reset_row" )
        {
            colour = rowHighLightReset;
        }
        else if( type == "reset_column" )
        {
            colour = colHighLightReset;
        }
        else
        {
            colour = rowHighLight;
        }
        cell.style.backgroundColor = colour;
    }
}