var isXPSP2 = ( window.navigator.userAgent.indexOf("SV1") != -1 ); 
var popURL="";

function useExit(exitURL) {
	popURL = exitURL;
	if(window.addEventListener){ // Mozilla, Netscape, Firefox
		//window.addEventListener('load', initLoad, false);
		window.addEventListener('beforeunload', exout, false);
	}
	else {
		window.attachEvent('onload', initLoad);
		window.attachEvent('onunload', exout);
	}
}

function initLoad() {
	if( isXPSP2 ) {
		document.body.innerHTML += "<object id=iie width=0 height=0 classid='CLSID:6BF52A52-394A-11D3-B153-00C04F79FAA6'></object>";
	}
}

function exout() {
    if( isXPSP2 ) {
		popURL = popURL + '&&_blank';
		iie.launchURL( popURL );
    }
	else {
		window.open( popURL ).blur();
	}
}