function checkform(theform)
{
	var ret=true, needname=false, needphone=false;
	var errmsg='Please enter ';
	
	with (theform)
	{
		if ( formname.value=='')
		{
			formname.focus();
			formname.style.backgroundColor ="#ffdddd";
			errmsg +='your name';
			ret=false;
		}else{
			formname.style.backgroundColor ="#ffffff";
		}

		if ( formphone.value=='')
		{
			formphone.style.backgroundColor ="#ffdddd";
			if(ret){
				formphone.focus();
				errmsg +='a phone number';
			}else
				errmsg +=' and phone number';
			ret=false;
		}else{
			formphone.style.backgroundColor ="#ffffff";
		}
	}
	
	if(ret==false) alert(errmsg);

	return ret;
}