function popup(murl) {
	window.open(murl, 'popup', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=450,height=400');
}

function launchpopup(murl,mname) {
	window.open(murl, mname, 'width=400, height=400');
}
function launchchatpopup(murl,mname) {
	window.open(murl, mname, 'width=450, height=450');
}

function launchbook(murl) {
	window.open(murl, 'mail', 'width=860, height=600');
}

function launchpoll() {
	window.open('poll.asp', 'poll', 'WIDTH=300,HEIGHT=320');
}

function launchpresentation(murl) {
	window.open(murl, 'Presentation', 'width=600, height=500, scrollbars');
}