function eventWin(event, winw, winh){

	var screenh = (screen.height)/2;

	var screenw = (screen.width)/2;

	var wint = screenh - (winh/2);

	var winl = screenw - (winw/2);

	window.open(event,'PWU','toolbar=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width='+winw+',height='+winh+',top='+wint+',left='+winl);

}



function vidWin(event, winw, winh){

	var screenh = (screen.height)/2;

	var screenw = (screen.width)/2;

	var wint = screenh - (winh/2);

	var winl = screenw - (winw/2);

	window.open(event,'PWU','toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width='+winw+',height='+winh+',top='+wint+',left='+winl);

}



function formWin(event, wname, winw, winh){

	var screenh = (screen.height)/2;

	var screenw = (screen.width)/2;

	var wint = screenh - (winh/2);

	var winl = screenw - (winw/2);

	window.open(event,wname,'toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width='+winw+',height='+winh+',top='+wint+',left='+winl);

}



function show(elmnt){

	document.getElementById(elmnt).style.visibility="visible";

}



function hide(elmnt){

	document.getElementById(elmnt).style.visibility="hidden";

}