/**
* shows the comparison grid popup
*/
function showComparisonGridPopUp() {
    var popUpWin = $("#popUpWin");
    if (popUpWin != null) {
        if (!popUpWin.hasClass("showpopUpWin")) {
            popUpWin.addClass("showpopUpWin");
        }
    }
}

/**
* hide the comparison grid popup
*/
function hideComparisonGridPopUp() {
    var popUpWin = $("#popUpWin");
    if (popUpWin != null) {
        if (popUpWin.hasClass("showpopUpWin")) {
            popUpWin.removeClass("showpopUpWin");
        }
    }
}