function isInt(field) {
	var valid = "0123456789.";
	var decimalCount = 0;
	for (var i=0; i<field.length; i++) {
		if (valid.indexOf(field.charAt(i)) =="-1") return false;
		if (field.charAt(i) == ".") decimalCount += 1;
		if (decimalCount > 1) return false;
	}
	return true;
}

function validate(form) {
	 
	var ok = 0;
	
	// Check required fields
	
	if (isEmpty(form.firstname.value)) {
		alert("Please enter your first name.");
		form.firstname.focus();
		return false;
	}
	if (isEmpty(form.lastname.value)) {
		alert("Please enter your last name.");
		form.lastname.focus();
		return false;
	}
	if (isEmpty(form.address1.value)) {
		alert("Please enter your address.");
		form.address1.focus();
		return false;
	}
	if (isEmpty(form.city.value)) {
		alert("Please enter your city.");
		form.city.focus();
		return false;
	}
	if (isEmpty(form.zip.value)) {
		alert("Please enter your zipcode.");
		form.zip.focus();
		return false;
	}
	
	if (form.state.options[form.state.selectedIndex].value == "0")
	{
		alert("Please enter your state.");
		form.state.focus();
		return false;
	}
	
	var i, n;
        
        n = document.ChangePass.email.value.length;
        
        for (i = 0;i < n;i++)
        {
          if (document.ChangePass.email.value.charAt(i) == " ") 
          {
            alert("Spaces are not allowed in email addresses!");
            return false;
          }
        }  
	    
	    if (document.ChangePass.email.value.length > 100)
        {
          alert("Email addresses must be at most 100 characters long");
		  document.ChangePass.email.focus();		  
          return false;
        }
		if (document.ChangePass.email.value.length < 3)
        {
          alert("Email addresses must be at least 3 characters long");
		  document.ChangePass.email.focus();	
          return false;
        }
	    if ((document.ChangePass.email.value != document.ChangePass.email2.value)||(document.ChangePass.email.value.length != document.ChangePass.email2.value.length))
        {
          alert("Email addresses do not match.");	
		  document.ChangePass.email.focus();	
          return false;
        }
	
	return true;
}

function lTrim(theString) {
	while(1) {
		if (theString.substring(0,1) != " ") 
			break;
		theString = theString.substring(1,theString.length);
	}
	return theString;
}
		
function isEmpty(inputVal) {
	var inputStr = lTrim(inputVal.toString());
	if (inputStr.length < 1) {
		return true;
	}
	return false;
}