function doPrint()
{
var startPrintMark = "" ;
var endPrintMark = "" ;
var startButtonMark = "" ;
var endButtonMark = "" ;
var btnPrint = "![](\"Images/print.gif\")
";
var source = document.body.innerHTML ;
source = source.substr(source.indexOf(startPrintMark) + startPrintMark.length) ;
source = source.substr(0, source.indexOf(endPrintMark)) ;
var posStartButton = source.indexOf(startButtonMark) ;
var posEndButton = source.indexOf(endButtonMark) ;
if (posStartButton >= 0 && posEndButton > posStartButton)
{
source = source.substr(0, posStartButton) + btnPrint + source.substr(posEndButton + endButtonMark.length) ;
}
var win = window.open("",null,"height=400,width=450,status=0, scrollbars=1,toolbar=0,menubar=0,location=0, resizable=1;");
win.document.open();
win.document.write('') ;
win.document.write('') ;
win.document.write(source) ;
win.document.write('') ;
win.document.close();
}