function addRow(tableID) {

    var table = document.getElementById(tableID);

    var rowCount = table.rows.length;
    var row = table.insertRow(rowCount);

    var colCount = table.rows[0].cells.length;

    for (var i = 0; i < colCount; i++) {

        var newcell = row.insertCell(i);
        newcell.innerHTML = table.rows[1].cells[i].innerHTML;

        /* set new id for the symptom select tag which is found in the first cell of every row
         * this makes the symptom select tag id dynamic and different for each table row
         * the id should be the rowCount +1000 to avoid a similar id with prompt div tag id set below
         */
         if (i == 1) {
            newcell.childNodes[1].id = (rowCount + 1000);
            //alert(newcell.childNodes[1].nodeName);
        }
        /*
         *  set  new value for the prompt div tag
         */
         if (i == 3) {
            table.rows[rowCount].cells[3].innerHTML = '';
            table.rows[rowCount].cells[3].innerHTML = '<div id="' + rowCount + '" class="text-center"></div>';
        }

        if (i == 4) {
            var promptId = rowCount + 100;

            table.rows[rowCount].cells[4].innerHTML = '';
            table.rows[rowCount].cells[4].innerHTML = '<div id="' + promptId + '" class="text-center"></div>';
        }
    }

}

function deleteRow(tableID) {
    try {
        var table = document.getElementById(tableID);
        var rowCount = table.rows.length;

        for (var i = 0; i < rowCount; i++) {
            var row = table.rows[i];
            var chkbox = row.cells[0].childNodes[0];
            if (null != chkbox && true == chkbox.checked) {
                if (rowCount <= 2) {
                    alert("Cannot delete all the rows.");
                    break;
                }
                table.deleteRow(i);
                rowCount--;
                i--;
            }
        }
    } catch (e) {
        alert(e);
    }
}


/*
 *code for selecting symptoms
 */


 function showPrompt(symptom_id, prompt_div_id) {

    if (symptom_id == ""){
        return;
    }

    $.ajax({
        method: 'POST', 
        url: '/triage/get_prompt',
        data: {'symptom_id' : symptom_id},
        success: function(response){

            var returnText = response.split('&&&&');

            var prompt = returnText[0];
            var reference = returnText[1];

            document.getElementById((prompt_div_id - 1000)).innerHTML = '<p style="color: #C85F6A;">' + prompt + '</p>';
            document.getElementById(prompt_div_id - 900).innerHTML = reference;
        },
        error: function(jqXHR, textStatus, errorThrown) {
            alert(JSON.stringify(jqXHR));
            console.log(JSON.stringify(jqXHR));
        }
    });
}