function dynamicTable(tableID,fields,fieldStyles,allowRemove,varName) {
    this.table = document.getElementById(tableID);
    this.fields = fields;
    this.fieldStyles = fieldStyles;
    this.allowRemove = allowRemove;
    this.numRows = 0;
    this.varName = varName;
    this.addRowIndex = 0;
    
    this.dtAddRow = dtAddRow;
    this.dtRemoveRow = dtRemoveRow;
    this.dtRemoveAll = dtRemoveAll;
    this.dtCountDynRows = dtCountDynRows;
    this.dtGetCell = dtGetCell;
    
    this.rFields = new Array(); //needed to lookup cell index by field name
    for(i=0;i<this.fields.length;i++) {
    	this.rFields[fields[i]] = i;
    }
}

function dtSetAddRowIndex(idx) {
	this.addRowIndex = 0;
}

function dtAddRow(values) {
    this.table.style.display='table';
    this.numRows++;
    
    row = this.table.insertRow(this.table.rows.length + this.addRowIndex);
    cells = new Array();

    for(i=0;i < this.fields.length;i++) {
        field = this.fields[i];
        cell = cells[field] = row.insertCell(i);

        if(style = this.fieldStyles[field]) {
            for(stylename in style) {
                cell.style[stylename] = style[stylename];
            }
        }

        if(values[field]) {
            cell.innerHTML = values[field];
        }
    }

    if(this.allowRemove) {
        cell = row.insertCell(i);
        cell.innerHTML = "<a href='javascript:void(null)' onclick=\"if(confirm('Rij echt verwijderen?')) "+this.varName+".dtRemoveRow(this.parentNode.parentNode.rowIndex)\">"
                         + "<img src='images/delete.gif' border=0 />"
                         +"</a>";
    }
}

function dtRemoveRow(i) {
    this.table.deleteRow(i);
    this.numRows = this.table.rows.length - 1;
}

function dtRemoveAll() {
	while(this.numRows > 0) {
    	this.table.deleteRow(this.numRows);
    	this.numRows = this.table.rows.length - 1;
	}
}

function dtGetCellContent(column, rowIndex) {
    if(cellindex = this.rFields[column]) {
        return this.table.rows[rowIndex].cells[cellindex].innerHTML;
    }
}
function dtCountDynRows() {
	return (this.table.rows.length + this.addRowIndex - 1);
}

function dtGetCell(column, rowIndex) {
    if(cellindex = this.rFields[column]) {
        return this.table.rows[rowIndex].cells[cellindex];
    }
}