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   //Code for adding HTML content to report viwer
    var headstr = "<html><head><title></title></head><body>";
    //End of body tag
    var footstr = "</body></html>";
    //This the main content to get the all the html content inside the report viewer control
    //"ReportViewer1_ctl10" is the main div inside the report viewer
    //controls who helds all the tables and divs where our report contents or data is available
    var newstr = $("#ReportViewer1_ctl10").html();
    //open blank html for printing
    var popupWin = window.open('', '_blank');
    //paste data of printing in blank html page
    popupWin.document.write(headstr + newstr + footstr);
    //print the page and see is what you see is what you get
    popupWin.print();