// JavaScript Document
function checkContact(land) {
  var valid = true;
  if (land.elements["fullName"].value == "")
    { document["fname"].src = "images/required.gif";
	  valid = false;
	}
  else { document["fname"].src = "images/clear.gif"; }

  if (land.elements["compName"].value == "")
    { document["cname"].src = "images/required.gif";
	  valid = false;
	}
  else { document["cname"].src = "images/clear.gif"; }

  if (land.elements["email"].value == "")
    { document["mail"].src = "images/required.gif";
	  valid = false;
	}
  else 
    { document["mail"].src = "/images/clear.gif";
	  var invalidChars = '\/\'\\ ";:?!()[]\{\}^|';
	  var addr = land.elements["email"].value;
	  for (i=0; i<invalidChars.length; i++) {
		if (addr.indexOf(invalidChars.charAt(i),0) > -1) {
		  document["mail"].src = "images/invalid_email.gif";;
		   valid = false;
		}
	  }
	  for (i=0; i<addr.length; i++) {
		if (addr.charCodeAt(i)>127) {
		  document["mail"].src = "images/invalid_email.gif";;
		   valid = false;
		}
	  }

	  var atPos = addr.indexOf('@',0);
	  if (atPos == -1) {
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	  if (atPos == 0) {
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	  if (addr.indexOf('@', atPos + 1) > - 1) {
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	  if (addr.indexOf('.', atPos) == -1) {
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	  if (addr.indexOf('@.',0) != -1) {
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	  if (addr.indexOf('.@',0) != -1){
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	  if (addr.indexOf('..',0) != -1) {
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	  var suffix = addr.substring(addr.lastIndexOf('.')+1);
	  if (suffix.length != 2 && suffix != 'com' && suffix != 'net' && suffix != 'org' && suffix != 'edu' && suffix != 'int' && suffix != 'mil' && suffix != 'gov' & suffix != 'arpa' && suffix != 'biz' && suffix != 'aero' && suffix != 'name' && suffix != 'coop' && suffix != 'info' && suffix != 'pro' && suffix != 'museum') {
		  document["mail"].src = "images/invalid_email.gif";;
		  valid = false;
	  }
	}

  if (land.elements["message"].value == "")
    { document["msg"].src = "images/required.gif";
	  valid = false;
	}
  else { document["msg"].src = "images/clear.gif"; }

  return valid;
}