function printpreview() {
 	var OLECMDID = 7;
	/* OLECMDID values:
	* 6 - print
	* 7 - print preview
	* 1 - open window
	* 4 - Save As
	*/
	var PROMPT = 1; // 2 DONTPROMPTUSER 
	var WebBrowser = '<OBJECT ID="ThisBrowser" WIDTH="0"" HEIGHT="0" CLASSID="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2"></OBJECT>';
	document.body.insertAdjacentHTML('beforeEnd', WebBrowser); 
	ThisBrowser.ExecWB(OLECMDID, PROMPT);
	ThisBrowser.outerHTML = "";
}