function CheckEmail(checkStr)
{
// test if valid email address, must have @ and .
var checkEmail	= "@.";
var EmailValid	= false;
var EmailAt	= false;
var EmailPeriod = false;
var EmailSpace	= false;
var error	= "";

if (checkStr.indexOf(" ") > -1)
{
EmailSpace = true;
}

for (i = 0;i < checkStr.length;i++)
{
ch = checkStr.charAt(i);

for (j = 0;j < checkEmail.length;j++)
{

if (ch == checkEmail.charAt(j) && ch == "@")
EmailAt = true;

if (ch == checkEmail.charAt(j) && ch == ".")
EmailPeriod = true;

if (EmailAt && EmailPeriod)
break;

if (j == checkEmail.length)
break;
}

// if both the @ and . were in the string
if ((EmailAt) && (EmailPeriod) && (!EmailSpace))
{
EmailValid = true
break;
error = "";
}

}


if (!EmailValid)
{
error	= "";

if ((!EmailAt) && (!EmailPeriod))
{
error	+= " - Email must contain an \"@\" and a \".\"\n";
}

if (!EmailAt)
{
error += " - Email must contain an \"@\"\n";	
}

if (!EmailPeriod)
{
error += " - Email must contain an \".\"\n";	
}

if (EmailSpace)
{
error += " - Email must not contain a space\n";	
}

else
{
error = " - Email is invalid\n";	
}

}

return error;
}

function ShowError(Errors)
{
alert("The following error(s) occurred:\n" + Errors.substring(Errors,Errors.length-1) + "\n\nSorry can not Process the form");
}

function CheckCompulsary(FormName)
{
	
var alertsay	= ""; 

if (document.getElementById(FormName).FullName.value == "")
{
alertsay	+= "- Please enter your Full Name\n";
}

if (document.getElementById(FormName).Email.value == "")
{
alertsay	+= "- Please enter an Email Address\n";
}

else
{
alertsay	+= CheckEmail(document.getElementById(FormName).Email.value);
}

return alertsay;

}

function CheckContact()
{

var alertsay	= CheckCompulsary("ContactForm"); 

if (document.getElementById("ContactForm").Telephone.value == "")
{
alertsay	+= "- Please enter a Telephone number\n";
}

if (alertsay)
{
ShowError(alertsay);
return false;
}

else
{
return true;
}

}

function CheckBrochure()
{

var alertsay	= CheckCompulsary("BrochureForm");

if (alertsay)
{
ShowError(alertsay);
return false;
}

else
{
return true;
}

}