function char_count(typing)
{
	var length;
	var addition = 0;
    
	if(typing == true)
    	addition = 1;
        
    length = document.getElementById('Description').value.length + addition;
    
    if(length > 500)
        document.getElementById('count').innerHTML = "<font color=\"red\">Character Count: " + length + "</font>";
    else
        document.getElementById('count').innerHTML = "Character Count: " + length;
}


function checkCommentForm()                                                   
{
    var flag = true;
	var commentString = document.comment_form.Description.value.split(' ').join('');

    if(document.comment_form.FirstName.value.length == 0)
    {
        alert("Please fill in your first name.");
        flag = false;
        document.comment_form.FirstName.focus();
    }    

    else if(document.comment_form.LastName.value.length == 0)
    {
        alert("Please fill in your last name.");    
        flag = false;
        document.comment_form.LastName.focus();
    }        

    else if(document.comment_form.Email.value.length == 0)
    {
        alert("Please fill in your email address."); 
        flag = false;
        document.comment_form.Email.focus();
    }    
      
    else if(document.comment_form.Subject.value.length == 0)
    {
        alert("Please select a subject."); 
        flag = false;
        document.comment_form.Subject.focus();
    }    

    else if(document.comment_form.Description.value.length == 0 || commentString.length == 0)
    {
        alert("Please make a comment."); 
        flag = false;
        document.comment_form.Description.focus();
    }    

	if(document.comment_form.Description.value.length > 1000)
    {
        alert("Please shorten your comment to less than 1000 characters."); 
        flag = false;
        document.comment_form.Description.focus();
    } 
    
    if(flag == true)
    {
        if(!Check())
        {
            alert("Please remove any HTML tags from your comments.");   
            flag = false;        
        }    
    }
    
    if(flag == true)
        flag = ValidateForm();  

    return flag;

}

function Del(Word) 
{
    a = Word.indexOf("<");
    b = Word.indexOf(">");
    len = Word.length;
    c = Word.substring(0, a);
    if(b == -1)
        b = a;
        
    d = Word.substring((b + 1), len);
    Word = c + d;
    tagCheck = Word.indexOf("<");
    if(tagCheck != -1)
        Word = Del(Word);
        
    return Word;
}

function Check() 
{
    ToCheck = document.comment_form.Description.value;
    Checked = Del(ToCheck);
    if(Checked.length != ToCheck.length)
        return false;
        
    else
        return true;
}

/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

function echeck(str) 
{

    var at="@"
    var dot="."
    var lat=str.indexOf(at)
    var lstr=str.length
    var ldot=str.indexOf(dot)
    if (str.indexOf(at)==-1)
    {
        alert("Please enter a valid email address.\nex: jane.smith@ncee.net");   
        return false
    }

    if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
    {
        alert("Please enter a valid email address.\nex: jane.smith@ncee.net");   
        return false
    }

    if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
    {
        alert("Please enter a valid email address.\nex: jane.smith@ncee.net");   
        return false
    }

     if (str.indexOf(at,(lat+1))!=-1)
     {
        alert("Please enter a valid email address.\nex: jane.smith@ncee.net");   
        return false
     }

     if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
     {
        alert("Please enter a valid email address.\nex: jane.smith@ncee.net");   
        return false
     }

     if (str.indexOf(dot,(lat+2))==-1)
     {
        alert("Please enter a valid email address.\nex: jane.smith@ncee.net");   
        return false
     }
    
     if (str.indexOf(" ")!=-1)
     {
        alert("Please enter a valid email address.\nex: jane.smith@ncee.net");   
        return false
     }

      return true                    
}

function ValidateForm()
{
    var emailID=document.comment_form.Email
    
    if ((emailID.value==null)||(emailID.value==""))
    {
        alert("Please fill in your email address.");   
        emailID.focus()
        return false
    }
    
    if (echeck(emailID.value)==false)
    {
        emailID.value=""
        emailID.focus()
        return false
    }
    
    return true
 }

/**
 * DHTML phone number validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

// Declaring required variables
var digits = "0123456789";

// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";

// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";

// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   
    var i;
    for (i = 0; i < s.length; i++)
    {   
        //Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) 
            return false;
    }
    
    // All characters are numbers.
    return true;
}
function trim(s)
{   
    var i;
    var returnString = "";
    
    // Search through string's characters one by one.   
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") 
            returnString += c;
    }
    return returnString;
}
function stripCharsInBag(s, bag)
{   
    var i;
    var returnString = "";
    
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) 
            returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone)
{
    var bracket=3
    strPhone=trim(strPhone)

    if(strPhone.indexOf("+")>1) 
        return false

    if(strPhone.indexOf("-")!=-1)
        bracket=bracket+1

    if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)
        return false

    var brchr=strPhone.indexOf("(")

    if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")
        return false

    if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)
        return false

    s=stripCharsInBag(strPhone,validWorldPhoneChars);

    return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function ValidatePhoneForm(){
    var Phone=document.comment_form.phone
    

    if (checkInternationalPhone(Phone.value)==false)
    {
        alert("Please enter a valid phone number.");   
        Phone.value=""
        Phone.focus()
        return false
    }
    return true
 }