function new_window(URL)
{	posx = (screen.availWidth-518)/2;
	posy = (screen.availHeight-600)/2;
	window.open(URL,'enlarged','width=518,height=600,top=' + posy + ',left=' + posx + ',dependent=yes,hotkeys=no,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no');
}

function sendmail()
{	var mailer = document.mailer;
	var sender = document.sender;
	var last_name = mailer.last_name.value;
	var first_name = mailer.first_name.value;
	var e_mail = mailer.e_mail.value;
	var subject = mailer.subject.value;
	var message = mailer.message.value;
	
	if (last_name == "" || first_name == "" || e_mail == "" || subject == "" || message == "")
	{	alert("Please fill out the form completely! Thank you!");
		return false;
	}
	
	sender.action = "mailto:compint@ph.tum.de?subject=" + subject;
	
	sender.Content.value = "\n" + "Last Name: " + last_name + "\n" + "First Name: " + first_name + "\n" + "E-Mail: " + e_mail + "\n\n" + "Message:\n" + message;
	window.self.location.href="contact2.html";
	
	return true;
}