function validate_form ( )
{
    valid = true;
    msg = "Please fix the following error to proceed: \n\n";

    if ( document.research_form.contact_name.value == "" )
    {
        msg += "Enter your name.\n";
        valid = false;
    }

    if ( document.research_form.company_name.value == "" )
    {
        msg += "Enter your company name.\n";
        valid = false;
    }

    if ( document.research_form.email.value == "" )
    {
        msg += "Enter your email.\n";
        valid = false;
    }
	
    if ( document.research_form.phone.value == "" )
    {
        msg += "Enter your phone.\n";
        valid = false;
    }
	
    if (!valid) {
    	alert(msg);
    }
	
    return valid;
}

function validate_demo ( )
{
    valid = true;
    msg = "Please fix the following error to proceed: \n\n";
		
    if ( document.demo_form.email_phone.value == "" )
    {
        msg += "Enter your email or phone.\n";
        valid = false;
    }
    if (!valid) {
    	alert(msg);
    }
		
    return valid;
}