function checkForm(form)
  
  {
		
    if(form.name.value == "") {
      alert("Error: Please enter your first name!");
      form.name.focus();
      return false;
    }
	
	 var iChars = "!@#$%^&*()+=-[]\';,./{}|\":<>?";

  for (var i = 0; i < document.enquiry.name.value.length; i++) {
   if (iChars.indexOf(document.enquiry.name.value.charAt(i)) != -1) 
   {
alert("Your name contains special characters. \n These are not allowed.\n Please remove them and try again.");
 form.name.focus();
   return false;
    }
  }
  
    var iChars = "!@#$%^&*()+=-[]\';,./{}|\":<>?";

  for (var i = 0; i < document.enquiry.bus_name.value.length; i++) {
   if (iChars.indexOf(document.enquiry.bus_name.value.charAt(i)) != -1) 
   {
alert("Your Business Name contains special characters. \n These are not allowed.\n Please remove them and try again.");
 form.enquiry.focus();
   return false;
    }
  }
  
  	if( form.email.value== "") {
      alert("Error: Please enter an email address!");
      form.email.focus();
      return false;
	}

var atpos=form.email.value.indexOf("@");
var dotpos=form.email.value.lastIndexOf(".");
if (atpos<1 || dotpos<atpos+2 || dotpos+2>=form.email.value.length)
  {
  alert("Please enter a valid email address");
      form.email.focus();
  return false;
  }
  
  
    if( form.phone.value== "") {
      alert("Error: Please enter a contact phone number!");
      form.phone.focus();
      return false;
    }
   if(isNaN(form.phone.value)||form.phone.value.indexOf(" ")!=-1)
           {
              alert("Your phone number can only contain numbers");
               form.phone.focus();
			  return false; 
           }
	  if (form.phone.value.length !=11)
           {
                alert("Your phone number is the wrong length.  UK phone numbers are 11 digits in length");
                 form.phone.focus();
				return false;
           }
	  
	
        var iChars = "!@#$%^&*()+=-[]\';,./{}|\":<>?";

  for (var i = 0; i < document.enquiry.service.value.length; i++) {
   if (iChars.indexOf(document.enquiry.service.value.charAt(i)) != -1) 
   {
alert("Your Intrested In field contains special characters. \n These are not allowed.\n Please remove them and try again.");
 form.enquiry.focus();
   return false;
    }
  } 	
    return true;
	}