function validateSupportForm(form){	
	p=form.Email.value.indexOf('@');
        if (p<1 || p==(form.Email.length-1)){
        	alert('Please enter a valid email address for us to contact you\nabout your support request.');
        	return false;
        }
        else if (form.OS.value==''){
        	alert('Please select an operating system.');
        	return false;
        }
        else if (form.ProductName.value==''){
        	alert('Please select a product.');
        	return false;
        }
        else if (form.Version.value==''){
       	alert('Please enter product version number.\nYou can find version number in the About box of the product.');
        	return false;
        }
        else if (form.FeedbackContent.value==''){
        	alert('Plesse provide a problem description.');
        	return false;
        }
        return true;
}