function doForm(form) {
	if (nadaFld(form.name))
		{
	         alert("Please enter your name.");
	         form.name.focus();
       }
	
	else if (checkEmailAddress(form.email) == false)
		 {
			alert("Please enter a valid email address.");
			form.email.focus();
			return false;
		}
      else if (nadaFld(form.city))
      {
	      alert("Please enter your town or city.");
	      form.city.focus();
      }
	else if (nadaFld(form.state))
      {
         alert("Please enter your State.");
        form.state.focus();
      }
    
        
	else if(chkRadio(form.coverage))
{
	alert("Please select a rating for the Coverage buttons.");
}
else if(chkRadio(form.quality))
{
	alert("Please select a rating for the Call Quality buttons.");
}
else if(chkRadio(form.cust))
{
	alert("Please select a rating for the Customer Service buttons.");
}
else if(chkRadio(form.cost_ben))
{
	alert("Please select a rating for the Cost Benefit buttons.");
}
	 	 
	else return true;
   return false;
}

function chkRadio(myRadio) {
	var radioChk = null
	for(var i=0; i<myRadio.length; i++)
	{
		if(myRadio[i].checked)
		{
			radioChk = 1;
		 	break
		 }
	}
	if(radioChk == 1)
		return false;
	else
		return true;
}

// Check to see if field is empty
function nadaFld(myTxt)
{
   if (myTxt.value.length == 0) 
      return true;
   for (var i=0; i<myTxt.value.length; ++i) {
      var ch = myTxt.value.charAt(i);
      if (ch != ' ' && ch != '\t') 
         return false;
   }
   return true;
}