function textCounter(field,cntfield,maxlimit)
{
	if (field.value.length > maxlimit)
	   field.value = field.value.substring(0, maxlimit);
	else
	   cntfield.value = maxlimit - field.value.length;
}

function sp_trim(inputString) 
{
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.

   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user

} // Ends the "trim" function

//Check to validate the email address
function sp_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 sp_highlightTextField(field) {
		field.style.borderColor = 'red';
		field.style.borderStyle = 'solid';
		field.style.borderWidth = '1px;';
}

function sp_nohighlightTextField(field) {
		field.style.borderColor = '';
		field.style.borderStyle = '';
		field.style.borderWidth = '';
}

function sp_highlightSelectField(field) {
		field.style.backgroundColor = 'red';
		field.style.color = 'black';
}		

function sp_nohighlightSelectField(field) {
		field.style.backgroundColor = '';
		field.style.color = '';
}	

function sp_check_textfield(field, fieldname, ErrorMsg)
{
	trimmed_string = sp_trim(field.value);
	if (trimmed_string.length == 0) 
	{
		ErrorMsg = ErrorMsg + '- ' + fieldname + '\n';
		sp_highlightTextField(field);
		field.focus();
	}
	else
	{	sp_nohighlightTextField(field);	}
return ErrorMsg;
}

function sp_check_selectfield(field, fieldname, ErrorMsg)
{
	if(field.value == "")
	{
		ErrorMsg = ErrorMsg + '- ' + fieldname + '\n';
		sp_highlightSelectField(field);
		field.focus();
	}
	else
	{	sp_nohighlightSelectField(field);	}

return ErrorMsg;
}

function sp_check_email(field, fieldname, ErrorMsg)
{
	if(!sp_isEmailAddr(field.value))
	{
		ErrorMsg = ErrorMsg + '- ' + fieldname + '\n';
		sp_highlightTextField(field);
		field.focus();
	}
	else
	{	sp_nohighlightTextField(field);	}

return ErrorMsg;
}

function sp_checkdomain(field, fieldname, ErrorMsg)
{
	var flag = 0;
	var found = '';
	re = /^((http[s]?):\/\/)([^\/:]+)(:\d{1,5})?(\/[^\s\"\'`]*)?$/i;

	found = re.exec(field.value);
	if (!found)	flag++;

	if(flag > 0)
	{
		ErrorMsg = ErrorMsg + '- ' + fieldname + '\n';
		sp_highlightTextField(field);
		field.focus();
	}
	else
	{	sp_nohighlightTextField(field);	}

return ErrorMsg;
}


function sp_quick_checkdomain(url)
{
	var flag = 0;
	re = /^((http[s]?):\/\/)([^\/:]+)(:\d{1,5})?(\/[^\s\"\'`]*)?$/i;
	found = re.exec(url);
	if (!found)	flag++;

	if(flag > 0)
	{
		return false;
	}
	else
	{		
		return true;
	}
}


function sp_recippop(siteid, recip_url) 
{
		var recipcheck_url  = 'http://www.site-partners.com/plus/externalsp/recip_check.php';	
	var ErrorMsg = '';

	if(!siteid){
		ErrorMsg = ErrorMsg + '- Site Account ID';
	}
	
	if(sp_quick_checkdomain(recip_url) == false){
		ErrorMsg = ErrorMsg + '- Reciprocal URL';
	}
	
	if(ErrorMsg != '') 
	{
		alert('Please complete ALL the following fields to continue:\n' + ErrorMsg);
		return false;
	} 
	else 
	{	
		s = new String(recip_url);
		s = s.replace(/&/g, "||");
		s = encodeURI(s);

		recipcheck_url = recipcheck_url + '?siteid=' + siteid + '&url=' + s;
		window.open(recipcheck_url,"","height=325,width=400,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1"); 	
	}
}

function sp_linkpop(url) 
{
	window.open(url,"","height=475,width=400,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1"); 	
}

function sp_pop(url) 
{
	window.open(url,"","height=500,width=500,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1"); 	
}

function sp_checkAddLink()
{
	var ErrorMsg = '';
	var password_flag = '';

	ErrorMsg = sp_check_selectfield(document.sp_add_link.sp_categoryid, "Site Category", ErrorMsg);
	ErrorMsg = sp_checkdomain(document.sp_add_link.recip_url, "Reciprocal URL", ErrorMsg);

	//check the password
	password_flag = sp_check_textfield(document.sp_add_link.sp_password1, "Password", password_flag);
	if( password_flag == '')	
	{
		//Confirm password check
		if(document.sp_add_link.sp_password1.value != document.sp_add_link.sp_password2.value)
		{
			ErrorMsg = ErrorMsg + '- Confirm Password' +'\n';
			sp_highlightTextField(document.sp_add_link.sp_password2);
			document.sp_add_link.sp_password2.focus();
		}
		else
		{
			sp_nohighlightTextField(document.sp_add_link.sp_password1);
			sp_nohighlightTextField(document.sp_add_link.sp_password2);
		}
	}
	else
	{
		ErrorMsg = ErrorMsg + '- ' + 'Password' + '\n';
		sp_highlightTextField(document.sp_add_link.sp_password1);
		sp_highlightTextField(document.sp_add_link.sp_password2);
		document.sp_add_link.sp_password1.focus();
	}

	ErrorMsg = sp_check_email(document.sp_add_link.sp_contact_email, "Contact Email", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_contact_name, "Contact Name", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_desc, "Site Description", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_title, "Site Title", ErrorMsg);
	ErrorMsg = sp_checkdomain(document.sp_add_link.sp_url, "Site URL", ErrorMsg);

	if(ErrorMsg != '') 
	{
		alert('Please complete ALL the following fields to continue:\n' + ErrorMsg);
		return false;
	} 
	else 
	{	
		return true;
	}
}

function sp_checkModifyLink()
{
	var ErrorMsg = '';
	ErrorMsg = sp_checkdomain(document.sp_modify_link.sp_url, "Site URL", ErrorMsg);
	ErrorMsg = sp_check_email(document.sp_modify_link.sp_contact_email, "Contact Email", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_modify_link.sp_password, "Password", ErrorMsg);

	if(ErrorMsg != '') 
	{
		alert('Please complete ALL the following fields to continue:\n' + ErrorMsg);
		return false;
	} 
	else 
	{	
		return true;
	}
}

function sp_checkModifyLinkForm()
{
	var ErrorMsg = '';

	ErrorMsg = sp_check_selectfield(document.sp_add_link.sp_categoryid, "Site Category", ErrorMsg);
	ErrorMsg = sp_checkdomain(document.sp_add_link.recip_url, "Reciprocal URL", ErrorMsg);

	//check the password and confirm are not empty
	trimmed_string1 = sp_trim(document.sp_add_link.sp_password1.value);
	trimmed_string2 = sp_trim(document.sp_add_link.sp_password2.value);
	if ( (trimmed_string1.length > 0) || (trimmed_string2.length > 0) )
	{
		//No password but a confirmed password
		if( (trimmed_string1.length == 0) && (trimmed_string2.length > 0) )
		{
			ErrorMsg = ErrorMsg + '- ' + 'New Password' + '\n';
			sp_highlightTextField(document.sp_add_link.sp_password1);
			document.sp_add_link.sp_password1.focus();
		}
		else if(document.sp_add_link.sp_password1.value != document.sp_add_link.sp_password2.value)
		{
			ErrorMsg = ErrorMsg + '- Confirm Password' +'\n';
			sp_highlightTextField(document.sp_add_link.sp_password2);
			document.sp_add_link.sp_password2.focus();
		}
		else
		{
			sp_nohighlightTextField(document.sp_add_link.sp_password1);
			sp_nohighlightTextField(document.sp_add_link.sp_password2);
		}
	}

	ErrorMsg = sp_check_email(document.sp_add_link.sp_contact_email, "Contact Email", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_contact_name, "Contact Name", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_desc, "Site Description", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_title, "Site Title", ErrorMsg);
	ErrorMsg = sp_checkdomain(document.sp_add_link.sp_url, "Site URL", ErrorMsg);

	if(ErrorMsg != '') 
	{
		alert('Please complete ALL the following fields to continue:\n' + ErrorMsg);
		return false;
	} 
	else 
	{	
		return true;
	}
}

function sp_checkForgotPass()
{
	var ErrorMsg = '';

	ErrorMsg = sp_checkdomain(document.sp_forgotpass.sp_url, "Site URL", ErrorMsg);
	ErrorMsg = sp_check_email(document.sp_forgotpass.sp_contact_email, "Contact Email", ErrorMsg);

	if(ErrorMsg != '') 
	{
		alert('Please complete ALL the following fields to continue:\n' + ErrorMsg);
		return false;
	} 
	else 
	{	
		return true;
	}

}

function sp_checkPendingLinkForm()
{
	var ErrorMsg = '';

	ErrorMsg = sp_check_selectfield(document.sp_add_link.sp_categoryid, "Site Category", ErrorMsg);
	ErrorMsg = sp_checkdomain(document.sp_add_link.recip_url, "Reciprocal URL", ErrorMsg);

	//check the password and confirm are not empty
	trimmed_string1 = sp_trim(document.sp_add_link.sp_password1.value);
	trimmed_string2 = sp_trim(document.sp_add_link.sp_password2.value);
	if ( (trimmed_string1.length > 0) || (trimmed_string2.length > 0) )
	{
		//No password but a confirmed password
		if( (trimmed_string1.length == 0) && (trimmed_string2.length > 0) )
		{
			ErrorMsg = ErrorMsg + '- ' + 'New Password' + '\n';
			sp_highlightTextField(document.sp_add_link.sp_password1);
			document.sp_add_link.sp_password1.focus();
		}
		else if(document.sp_add_link.sp_password1.value != document.sp_add_link.sp_password2.value)
		{
			ErrorMsg = ErrorMsg + '- Confirm Password' +'\n';
			sp_highlightTextField(document.sp_add_link.sp_password2);
			document.sp_add_link.sp_password2.focus();
		}
		else
		{
			sp_nohighlightTextField(document.sp_add_link.sp_password1);
			sp_nohighlightTextField(document.sp_add_link.sp_password2);
		}
	}

	ErrorMsg = sp_check_email(document.sp_add_link.sp_contact_email, "Contact Email", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_contact_name, "Contact Name", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_desc, "Site Description", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_title, "Site Title", ErrorMsg);
	ErrorMsg = sp_checkdomain(document.sp_add_link.sp_url, "Site URL", ErrorMsg);

	if(ErrorMsg != '') 
	{
		alert('Please complete ALL the following fields to continue:\n' + ErrorMsg);
		return false;
	} 
	else 
	{	
		return true;
	}
}

function EnableSitesVars(val)
{


	//enables the site to add's vars
	if(document.sp_add_link.elements['sp_sites[' + val + ']'].checked == true)
	{
		
		document.sp_add_link.elements['sp_categoryid[' + val + ']'].disabled = false;
		document.sp_add_link.elements['recip_url[' + val + ']'].disabled = false;

		if(document.sp_add_link.elements['recip_url[' + val + ']'].value == '')
		{
			document.sp_add_link.elements['recip_url[' + val + ']'].value = 'http://';
		}
	}
	else
	{
		document.sp_add_link.elements['sp_categoryid[' + val + ']'].disabled = true;
		document.sp_add_link.elements['recip_url[' + val + ']'].disabled = true;

		if(document.sp_add_link.elements['recip_url[' + val + ']'].value == 'http://')
		{
			document.sp_add_link.elements['recip_url[' + val + ']'].value = '';
		}
	}
}

function sp_checkGroupAddLink()
{
	var ErrorMsg = '';
	var password_flag = '';

	ErrorMsg = sp_check_email(document.sp_add_link.sp_contact_email, "Contact Email", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_contact_name, "Contact Name", ErrorMsg);

	//check the password
	password_flag = sp_check_textfield(document.sp_add_link.sp_password1, "Password", password_flag);
	if( password_flag == '')	
	{
		//Confirm password check
		if(document.sp_add_link.sp_password1.value != document.sp_add_link.sp_password2.value)
		{
			ErrorMsg = ErrorMsg + '- Confirm Password' +'\n';
			sp_highlightTextField(document.sp_add_link.sp_password2);
			document.sp_add_link.sp_password2.focus();
		}
		else
		{
			sp_nohighlightTextField(document.sp_add_link.sp_password1);
			sp_nohighlightTextField(document.sp_add_link.sp_password2);
		}
	}
	else
	{
		ErrorMsg = ErrorMsg + '- ' + 'Password' + '\n';
		sp_highlightTextField(document.sp_add_link.sp_password1);
		sp_highlightTextField(document.sp_add_link.sp_password2);
		document.sp_add_link.sp_password1.focus();
	}

	ErrorMsg = sp_checkdomain(document.sp_add_link.sp_url, "Site URL", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_title, "Site Title", ErrorMsg);
	ErrorMsg = sp_check_textfield(document.sp_add_link.sp_desc, "Site Description", ErrorMsg);

	//checking sites,categoryid,recip_url
	var website_check = 0;
	var category_check = 0;
	var err;
	var recip_check = 0;
	for (var i = 0; i<document.sp_add_link.elements.length; i++) 
	{
    	 if ((document.sp_add_link.elements[i].name.indexOf('sp_sites') > -1)) 
		{
            if (document.sp_add_link.elements[i].checked == true) 
			{
		  		website_check = 1;
				
				//check if there is a category selected
				if(document.sp_add_link.elements['sp_categoryid[' + document.sp_add_link.elements[i].value + ']'].value == '')
				{
					category_check = category_check + 1;
	                sp_highlightSelectField(document.sp_add_link.elements['sp_categoryid[' + document.sp_add_link.elements[i].value + ']']);					
				}
				else
				{	
					sp_nohighlightSelectField(document.sp_add_link.elements['sp_categoryid[' + document.sp_add_link.elements[i].value + ']']);	
				}

				//check if there is a recip_url for each site
				err = sp_quick_checkdomain(document.sp_add_link.elements['recip_url[' + document.sp_add_link.elements[i].value + ']'].value);
				if( err == false)				
				{
					recip_check = recip_check + 1;
	                sp_highlightTextField(document.sp_add_link.elements['recip_url[' + document.sp_add_link.elements[i].value + ']']);					
				}
				else
				{	
					sp_nohighlightTextField(document.sp_add_link.elements['recip_url[' + document.sp_add_link.elements[i].value + ']']);	
				}
            }
        }
	}	
		
	if(website_check < 1)
	{	ErrorMsg = ErrorMsg + "- No Websites selected for linking\n";	}
	else
	{
		if(category_check > 0)
		{	ErrorMsg = ErrorMsg + "- Please select a website category for each site\n";	}

		if(recip_check > 0)
		{	ErrorMsg = ErrorMsg + "- Please provide a reciprocal URL for each site\n";	}
	}


	if(ErrorMsg != '') 
	{
		alert('Please complete ALL the following fields to continue:\n' + ErrorMsg);
		return false;
	} 
	else 
	{	
		return true;
	}

}