// ----------------------------------------------------------------------
// Javascript form validation routines.
// ----------------------------------------------------------------------

var nbsp = 160;    // non-breaking space char
var node_text = 3; // DOM text node-type
emptyString = /^\s*$/;

// -----------------------------------------
//                  trim
// Trim leading/trailing whitespace off string
// -----------------------------------------

function trim(str)
{
  return str.replace(/^\s+|\s+$/g, '')
};

// -----------------------------------------
//                  msg
// Display warn/error message in HTML element
// commonCheck routine must have previously been called
// -----------------------------------------

function msg(fld,     // id of element to display message in
             message) // string to display
{
  // setting an empty string can give problems if later set to a 
  // non-empty string, so ensure a space present. (For Mozilla and Opera one could 
  // simply use a space, but IE demands something more, like a non-breaking space.)
  var dispmessage;
  if (emptyString.test(message)) 
    dispmessage = String.fromCharCode(nbsp);    
  else  
    dispmessage = message;

  var elem = document.getElementById(fld);
  elem.style.display = "block";
  elem.firstChild.nodeValue = dispmessage;  

};

// -----------------------------------------
//            commonCheck
// Common code for all validation routines to:
// (a) check for older / less-equipped browsers
// (b) check if empty fields are required
// Returns true (validation passed), 
//         false (validation failed) or 
//         proceed (don't know yet)
// -----------------------------------------

var proceed = 1;  

function commonCheck(vfld)   // true if required
{
  if (!document.getElementById) 
    return true;  // not available on this browser - leave validation to the server
  var elem = document.getElementById('errmsg');
  if (!elem.firstChild)
    return true;  // not available on this browser 
  if (elem.firstChild.nodeType != node_text)
    return true;  // ifld is wrong type of node  
	  var vitem = vfld.name;
	  var item = vfld.value;
document.getElementById(vitem+'Label').style.color = "#555555"; // sets colors back to normal if form is filled
document.getElementById(vitem+'Label').style.fontWeight = "normal"; //sets font weight back to normal if form is filled

var re = /^\s*$/;      	// original regexp function test choked on textareas in safari, so here is a workaround
if (item.match(re)) {  	// doing modified regexp test - on match, replacing string with blank space
item = " ";       		// in next if statement, tests for the blank space.
}

  if ((item=='') || (item==' ') || (item=='  ') || (item==null)) { 
document.getElementById(vitem+'Label').style.color = "#ff0000"; // if blank, label goes red
document.getElementById(vitem+'Label').style.fontWeight = "bold"; // if blank, label goes bold
  msg ("errmsg", "Error. Please correct the indicated fields.");  
  vfld.focus();
  return false;
  }
return proceed;
}

// -----------------------------------------
//               validateEmail
// Validate if e-mail address
// Returns true if so (and also if could not be executed because of old browser)
// -----------------------------------------

function validateEmail(vfld)   // true if required			 
						 
{
  var stat = commonCheck(vfld); //checks if blank first
  if (stat != proceed) return stat;

  var tfld = trim(vfld.value);  // value of field with whitespace trimmed off
  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/
  if (!email.test(tfld)) {
  var vitem = vfld.name;
  document.getElementById(vitem+'Label').style.color = "#ff0000"; // if not valid email, label goes red
  document.getElementById(vitem+'Label').style.fontWeight = "bold"; // if not valid email, label goes bold
    msg ("errmsg", "Error. Please correct the indicated fields."); 
    vfld.focus();
    return false;
  }
  return true;
};

function checkSameEmail(email1,email2) {
    if (email1.value != email2.value)  {
      var vitem = email1.name;
      var vitem2 = email2.name;
      document.getElementById(vitem+'Label').style.color = "#ff0000"; // if not valid email, label goes red
      document.getElementById(vitem+'Label').style.fontWeight = "bold"; // if not valid email, label goes bold
      document.getElementById(vitem2+'Label').style.color = "#ff0000"; // if not valid email, label goes red
      document.getElementById(vitem2+'Label').style.fontWeight = "bold"; // if not valid email, label goes bold
      msg ("errmsg", "Error. Please correct the indicated fields."); 
      email1.focus();
      return false;
    }
  return true;
}
function hasLegacyBlue(divElem){
	var myclass = new RegExp('\\bbox_blue_legacy\\b');
	var elem = divElem.getElementsByTagName('div');
	for (var i = 0; i < elem.length; i++) {
		var classes = elem[i].className;
		if (myclass.test(classes)) {
			return true;
		}
	}
	return false;
}
function getDivsByClassName (cl) {
	var retnode = [];
	var myclass = new RegExp('\\b'+cl+'\\b');
	var elem = document.getElementsByTagName('div');
	for (var i = 0; i < elem.length; i++) {
		var classes = elem[i].className;
		if (myclass.test(classes)) {
			if(hasLegacyBlue(elem[i])) retnode.push(elem[i]);
		}
	}
	return retnode;
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function highlightLastLI() { 
    var liList, ulTag, liTag; 
    var ulList = document.getElementsByTagName("ul"); 
    for (var i = 0; i < ulList.length; i++) 
    { 
        ulTag = ulList[i]; 
        liList = ulTag.getElementsByTagName("li"); 
        liTag = liList[liList.length - 1]; 
        liTag.className = "lastchild"; 
    } 
}