/*
	功能:打印网页某区域
	<!--StartPrint-->XXX<!--EndPrint-->
*/
function doPrint() 
{
	bdhtml=window.document.body.innerHTML;
	sprnstr="<!--StartPrint-->";
	eprnstr="<!--EndPrint-->";
	prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17);
	prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr));
	window.document.body.innerHTML=prnhtml;
	window.print();
}