function chkFields()
{

if (document.mainform.c_name.value == "")
	{
		alert
		("Please enter your name.");
		document.mainform.c_name.focus();
		return false;
	}
	
if (document.mainform.c_phone.value == "")
	{
		alert
		("Please enter your phone number.");
		document.mainform.c_phone.focus();
		return false;
	}
	
if (document.mainform.c_email.value == "" || document.mainform.c_email.value.indexOf("@") == -1 || document.mainform.c_email.value.indexOf(".") == -1 || document.mainform.c_email.value.indexOf(" ") != -1 || document.mainform.c_email.value.length < 6)
	
	{
		alert("Please enter your e-mail address. Be sure to\n" + "include the @ sign and at least one period.");
		document.mainform.c_email.focus();
		return false;
	}
	
}