function submitForm()
{
	frm = document.forms.f1;
	
	if (frm.firstName.value == '')
	{
		alert("Please enter your name");
		frm.firstName.focus();
		return false;
	}
	if (frm.organisation.value == '')
	{
		alert("Please enter your company name");
		frm.organisation.focus();
		return false;
	}
	if (frm.comments.value == '')
	{
		alert("Please enter your comments");
		frm.comments.focus();
		return false;
	}
	
	if(frm.captcha.value == '') { 
        alert("Please type the characters you see in the picture, or click on the speaker and type the numbers you hear."); 
        frm.captcha.focus();
        return false ; 
    }

	showFormProcessing();
}