function check_input(form){
	if (form.name.value == ''){
		alert ("Please enter your name.");
		form.name.focus();
		return false;
	}
	if (form.email.value == ''){
		alert ("You clicked the submit button, but did not enter an email address. Please try again.");
		form.email.focus();
		return false;
	}
	txt=form.email.value;
	if (txt.indexOf("@")<3){
		alert("This email address appears to be invalid. Please make sure you have included an email address and an '@' sign.");
			form.email.focus()
			return false
	}
	if ((txt.indexOf(".com")<5)&&(txt.indexOf(".org")<5)&&(txt.indexOf(".gov")<5)&&(txt.indexOf(".net")<5)&&(txt.indexOf(".mil")<5)&&(txt.indexOf(".edu")<5))
			{
			alert("This email address appears to be incomplete. Please check the suffix for accuracy. (It should contain a .com, .edu, .net, .org, .gov or .mil)");
			form.email.focus()
			return false
			}
	if (form.phone.value == ''){
		alert ("Please enter your phone number. Don't forget the area code.");
		form.phone.focus();
		return false;
	}
return true;
}