/*function imprimirCupon (){
var cupon=document.getElementById("principal");
document.PrintContent(cupon)
//window.print();					
}*/

function PrintContent()
    {
        var DocumentContainer = document.getElementById('form1');
        var WindowObject = window.open('', "TrackHistoryData", 
                              "width=740,height=400,top=200,left=250,toolbars=no,scrollbars=yes,status=no,resizable=no");
        WindowObject.document.writeln(DocumentContainer.innerHTML);
        WindowObject.document.close();
        WindowObject.focus();
        WindowObject.print();
        WindowObject.close();
    }