function validEmailId(formField,fieldLabel) {
	var result = true;
	
	if(formField.value=="")
  {
    alert("Enter your email id");
	formField.focus();
    result=false;
  }
   else 
  {
if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(formField.value))) 
  {
    alert("The email you entered is not a valid email address.");
	formField.focus();
	formField.select();
     result= false;
  }
}
	return result;
}

function validSelection(formField,fieldLabel){
	var result = true;
	
	if (formField.options[0].selected) {
		alert('Please select a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}	
	return result;
}

function validRequired(formField,fieldLabel){
	var result = true;
	
	if (formField.value == "") {
		alert('Please enter  "' + fieldLabel +'".');
		formField.focus();
		result = false;
	}	
	return result;
}
function isEmailAddr(email) {
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0) {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function fieldEmpty(formField) {
	var result = true;
	
	if (formField.value == ""){
		result = false;
	}	
	return result;
}


function allDigits(str) {
	return inValidCharSet(str,"0123456789");
}

function allFloat(str) {
	return inValidCharSet(str,"0123456789.");
}

function inValidCharSet(str,charset){
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)	{
			result = false;
			break;
		}
	
	return result;
}

function validNum(formField,fieldLabel,required) {
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result)	{
 		if (!allDigits(formField.value)) {
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();
			formField.select();		
			result = false;
		}
	} 
	return result;
}