//-- Javascript document
function checkFormPostcard(form)
{
	var errorstring = "The following errors were encountered:\n\n";
	var formerrors = new Array();
	
	if(empty(document.postForm.frmName.value))
	{
		formerrors.push(" - must specify a senders name");
	}
	
	if(empty(document.postForm.frmEmail.value))
	{
		formerrors.push(" - must specify a senders email address");
	}
	else if(!is_valid_email(document.postForm.frmEmail.value))
	{
		formerrors.push(" - must specify a valid senders email address");
	}
	
	if(empty(document.postForm.frmName2.value))
	{
		formerrors.push(" - must specify a recipients name");
	}
	
	if(empty(document.postForm.frmEmail2.value))
	{
		formerrors.push(" - must specify a recipients email address");
	}
	else if(!is_valid_email(document.postForm.frmEmail2.value))
	{
		formerrors.push(" - must specify a valid recipients email address");
	}
	
	if(formerrors.length > 0)
	{
		errorstring += formerrors.join("\n");
		window.alert(errorstring);
		return false;
	}
	return true;
}