function setHeaderBgImage(path)
{
	w=screen.width;
	if (w<=1024)
	{
		imgFile=path+"gca2_timp_1024.jpg";
	}
	else
	if (w<=1280)
	{
		imgFile=path+"gca2_timp_1280.jpg";
	}
	else
	if (w<=1440)
	{
		imgFile=path+"gca2_timp_1440.jpg";
	}
	else
	if (w<=1680)
	{
		imgFile=path+"gca2_timp_1680.jpg";
	}
	else
	if (w<=1920)
	{
		imgFile=path+"gca2_timp_1920.jpg";
	}
	else
	{
		imgFile=path+"gca2_timp_2560.jpg";
	}
	document.body.style.backgroundImage="url("+imgFile+")";
}



function isValidEmail(email)
{
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   if(reg.test(email)==false)
	 {
      return false;
   }
	 else
	 {
		 return true;
	 }
}



function doContactUs()
{
	if	(
      (document.cuForm.cuName.value=='') ||
			(document.cuForm.cuEmail.value=='') ||
			(document.cuForm.cuMessage.value=='')
    	) 
  {
    alert("Please enter your name, email and message.");
  }
	else
  if	 (isValidEmail(document.cuForm.cuEmail.value)==false)
  {
    alert('It appears that the email address you entered is not valid.');
  }
  else
  {
		alert("Thank you. After clicking OK, your request will be submitted. We'll respond soon.");
		document.cuForm.submit();
  }
}