function doPrint() {    
	var bdhtml = window.document.body.innerHTML;    
	var sprnstr="<!--startprint-->";    
	var eprnstr="<!--endprint-->";    
	var prnhtml =bdhtml.substr(bdhtml.indexOf(sprnstr)+17);    
	var prnhtml = prnhtml.substring(0,prnhtml.indexOf(eprnstr));    
	window.document.body.innerHTML = prnhtml;    
	window.print();    
}