function visit(newURL) {
  if (newURL != "index.html") {
  	location.href=newURL
  }
}

function back() {
  history.back();
}

function send_email(name,domain)  {
    var atsign ="@";
    var m_a_i_l_t_o = "mailto";
    var colon = ":";
    var expression = '<a href="' + m_a_i_l_t_o + colon + name + atsign + domain + '">' + name + atsign + domain + '</a>';
    document.write (expression);
}

function send_email_name(name,domain,realname)  {
    var atsign ="&#64;";
    var m_a_i_l_t_o = "&#109;&#97;&#105;&#108;&#116;&#111;";
    var colon = "&#58;";
    var expression = '<a href="' + m_a_i_l_t_o + colon + name + atsign + domain + '">' + realname + '</a>';
    document.write (expression);
}

function open_window(url)	{
	var height = 500;
	var width = 485;
	var left = (screen.availWidth - width) / 2;
	var top = (screen.availHeight - height) / 2;

	window.open(""+url+"", "", "height="+height+",width="+width+",left="+left+",top="+top+",status=yes,toolbar=yes,menubar=yes,location=no,scrollbars=yes");
}

function open_call_window(url)	{
	var height = 500;
	var width = 200;
	var left = (screen.availWidth - width) / 2;
	var top = (screen.availHeight - height) / 2;

	window.open(""+url+"", "", "height="+height+",width="+width+",left="+left+",top="+top+",status=yes,toolbar=no,menubar=no,location=no,scrollbars=no");
}

function open_window_hw(url, height, width)	{
	width = width + 60;
	height = height + 80;
	var left = (screen.availWidth - width) / 2;
	var top = (screen.availHeight - height) / 2;

	window.open(""+url+"", "", "height="+height+",width="+width+",left="+left+",top="+top+",status=no,toolbar=no,menubar=no,location=no,scrollbars=yes, resizable=yes");
}

function open_window(url, height, width)	{
	width = width + 60;
	height = height + 80;
	var left = (screen.availWidth - width) / 2;
	var top = (screen.availHeight - height) / 2;

	window.open(""+url+"", "", "height="+height+",width="+width+",left="+left+",top="+top+",status=no,toolbar=no,menubar=no,location=no,scrollbars=no, resizable=yes");
}