/*
iContact Error Message Functions
*/
function insertErrorMessage(pMsg) {
  var msg = new String;
  msg = pMsg;
  
  if ((msg.length > 0) && (msg != "undefined")) {
      alert('param');

  } else {
  // read from URL
    msg = getWholeQueryString();
    
    if (msg.length > 0) {
      var dSpan = document.createElement("span");
      dSpan.setAttribute("id","spError");
      dSpan.appendChild(document.createTextNode(msg));
      document.getElementById("divErrorMessage").appendChild(dSpan);
      document.title = "Error: " + msg;      
      
    } else {
      // hide the element
      document.getElementById("h2ShowError").style.display = "none";    
      document.getElementById("divErrorMessage").style.display = "none";       
    }     
  }
}

function getWholeQueryString() {
  var strReturn = "";
  var strHref = window.location.href;
  var strQueryString = new String;
  
  if ( strHref.indexOf("?") > -1 ) {
    // format the qs for presentation
    strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
    strQueryString = strQueryString.substring(1,strQueryString.length);    
    
    strQueryString = strQueryString.replace(/\+/g," ");
    strQueryString = strQueryString.substring(0,1).toUpperCase() + strQueryString.substring(1,strQueryString.length) + ".";
    strQueryString= unescape(strQueryString);    
    return strQueryString;
  } else {  
    return ("An unknown error has occurred.");
    }
}

function getURLParam(strParamName) {
  var strReturn = "";
  var strHref = window.location.href;
  if ( strHref.indexOf("?") > -1 ) {
    var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
    var aQueryString = strQueryString.split("&");
    for ( var iParam = 0; iParam < aQueryString.length; iParam++ ) {
      if (aQueryString[iParam].indexOf(strParamName.toLowerCase() + "=") > -1 ) {
        var aParam = aQueryString[iParam].split("=");
        strReturn = aParam[1];
        break;
      }
    }
  }
  return unescape(strReturn);
}

/*
Function to verify required fields are populated.
*/
function verifyRequired() {
  if (document.icpsignup["fields_email"].value == "") {
	document.icpsignup["fields_email"].focus();
	alert("An Email address is required.");
	return false;
  }
  if (document.icpsignup["fields_fname"].value == "") {
	document.icpsignup["fields_fname"].focus();
	alert("Your First Name field is required.");
	return false;
  }
  if (document.icpsignup["fields_lname"].value == "") {
	document.icpsignup["fields_lname"].focus();
	alert("Your Last Name field is required.");
	return false;
  }
return true;
}

/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/
var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};

/*
Function generate the years for the birthdate dropdown.
*/
function getYears(num){
	document.write("<select name=\"fields_dobyear\">\n");
	document.write("<option selected=\"selected\"></option>\n");
	var startYear = new Date().getYear();
	for (i=0; i<num; i++){
		document.write("<option value=\""+startYear+"\">"+startYear+"<\/option>\n");
		startYear = startYear - 1;
	}
	document.write("</select>");
}

function toggleExtraInfo(classname, label){
	var hidden = true;
	var extra = getElementsByClassName(classname);
	var msg = document.getElementById(label);
	for (i=0;i<extra.length;i++){
		if (extra[i].style.display == "" || extra[i].style.display == "none" ){
			if (navigator.appName == 'Microsoft Internet Explorer') {
				extra[i].style.display = "inline";
			}else{
				extra[i].style.display = "table-cell";
			}
			hidden = false;
		} else {
			extra[i].style.display = "none";
			hidden = true;
		}
	}
	if (hidden){
		msg.innerHTML = "Personalize your subscription...";
	}else{
		msg.innerHTML = "Less information";
	}
}