function popWindow(url, name) {

   var maxHeight = 400
   var maxWidth = 600
   var left = Math.floor( (screen.width - maxWidth) / 2);
   var top = Math.floor( (screen.height - maxHeight) / 2);

   var winParms = "top=" + top + ",left=" + left + ",height=" + maxHeight + ",width=" + maxWidth + ",scrollbars=1,locationbar=0,directories=0,resizable=1,statusbar=0,toolbar=0;"
   var win = window.open(url, name, winParms);

   if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
   return
}
function checkEmail(){
	emailCheck = document.getElementById('email').value.indexOf("@",1)
	stopCheck = document.getElementById('email').value.indexOf(".",1)
	
	if ((document.getElementById('email').value.length <= 5) || (emailCheck == -1) || (stopCheck == -1)){		
		window.alert('Please enter a full email address.');
		document.getElementById('email').focus();
		return false
	}
	else {		
		return true			
	}	
}