<input type="button"  onclick="ShowNewPage()" value="Details" />

var modalWin = new CreateModalPopUpObject();

function ShowNewPage() {

     var callbackFunctionArray = new Array(backPage, insertData);
     modalWin.ShowURL('salaryDetails.html',600,600,'Salary Details',null,callbackFunctionArray);
 }

function CreateModalPopUpObject() {
    if (bailwal_modalPopupWindow == null) {
        bailwal_modalPopupWindow = new ModalPopupWindow();
    }
    return bailwal_modalPopupWindow;
}

function ModalPopupWindow() {

 this.ShowURL = function (url, height, width, title, onCloseCallBack, callbackFunctionArray, maxmizeBtn) {
        __InitModalPopUp(height, width, title);
        var divFrameParent = document.getElementById("bailwal_div_frame_parent");
        var divOverlay = document.getElementById("bailwal_div_overlay");
        var iframe = document.getElementById("bailwal_overlay_frame");
        var tdOverLay = document.getElementById("bailwal_td_overlay");
        tdOverLay.style.height = divFrameParent.offsetHeight - 20 + "px";
        tdOverLay.style.width = divFrameParent.offsetWidth - 2 + "px";
        document.getElementById("bailwal_span_loading").style.display = "";
        document.getElementById("bailwal_div_message").style.display = "none";
        //iframe.src = url;
        iframe.style.height = divFrameParent.offsetHeight - 60 + "px";
        iframe.style.width = divFrameParent.offsetWidth - 2 + "px";
        setTimeout("bailwal_modalPopupWindow.LoadUrl('" + url + "')", 1);
        if (onCloseCallBack != null && onCloseCallBack != '') {
            onPopUpCloseCallBack = onCloseCallBack;
        }
        if (callbackFunctionArray != null && callbackFunctionArray != '') {
            callbackArray = callbackFunctionArray;
        }
        if (maxmizeBtn) {
            document.getElementById("bailwal_span_overlay_window_max").style.display = "";
        }
    }
}