// Function opens link in new window
//
function openInNewWindow(address) {
var newWindow = window.open(address, 'newWindow');
newWindow.focus();
return false;
}

// Function runs on window load, going through link tags looking for rel="external".
// These links receive onclick events that cause the link to open in a new window.
//
function initLinker()
{
	
	if (!document.getElementsByTagName){ return; }
	var anchors = document.getElementsByTagName("a");

	// loop through all anchor tags
	for (var i=0; i<anchors.length; i++){
		var anchor = anchors[i];

		if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "external")){
			anchor.onclick = function () {openInNewWindow(this.getAttribute("href")); return false;}
		}
	}
}


// Function turns spam-bot protected e-mail addresses
// into functioning e-mail links
//
function emailCloak() {
	if (document.getElementById) {
		var alltags = document.all? document.all : document.getElementsByTagName("span");
		for (i=0; i < alltags.length; i++) {
		  if (alltags[i].className == "cloak") {
			var oldText = alltags[i].firstChild;
			var emailAddress = alltags[i].firstChild.nodeValue;
			var user = emailAddress.substring(0, emailAddress.indexOf("("));
			var website = emailAddress.substring(emailAddress.indexOf(")")+1, emailAddress.length);
			var newText = user+"@"+website;
			var a = document.createElement("a");
			a.href = "mailto:"+newText;
			var address = document.createTextNode(newText);
			a.appendChild(address);
			alltags[i].replaceChild(a,oldText);
		  }
		}
	}
}

//
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addLoadEvent(func)
{	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}

}

//
// validates evalution form
//
var frmFalse;
function formCheck(form) {
	// check textareas
	if(!form) form = document.getElementById("frmEval");
	var elements = form.elements;
	var elmLength = elements.length;
	for(i=0;i<elmLength;i++) {
		var element = elements[i];
		if(element.type == "textarea" || element.type == "text") {
			if(element.value == "" && element.getAttribute("rel") != "nocheck") {
				var elmParent = element.parentNode;
				elmParent.className += " missing";
				element.onblur = function() { inputVal(this); }
				var frmReturn = "false";
			}
			if(element.getAttribute("rel") == "email") { 
				var mailcheck = echeck(element.value); 
				if(mailcheck == false) {
					var elmParent = element.parentNode;
					elmParent.className += " missing";
					element.onblur = function() { inputVal(this); }
					var frmReturn = "false";
				}
			}
		}
		if(element.type == "radio" || element.type == "checkbox") {
			var elmName = element.name;
			//var radios = form.eval(elmName);
			var radios = form[elmName];
			var radiosLength = radios.length;
			var radiosCheck = "no";
			for(j=0;j<radiosLength;j++) {
				var radio = radios[j];
				if(radio.checked == true || radio.getAttribute("rel") == "nocheck") radiosCheck = "yes";
				else radio.onclick = function() { radioVal(this); }
			}
			if(radiosCheck == "no") {
				var elmParent = radio.parentNode.parentNode;
				elmParent.className = "missing";
				var frmReturn = "false";
			}
		}
	}
	if(frmReturn == "false" && frmFalse != "true") {
		frmFalse = "true";
		var frmEval = document.getElementById("frmForm");
		var errorPara = document.createElement('p');
			errorPara.setAttribute('id','frm-error');
		var errorText = document.createTextNode("You didn't complete the entire form. Parts highlighted in red need to be filled out.");
		errorPara.appendChild(errorText);
		frmEval.insertBefore(errorPara,frmEval.firstChild);
	}
	if(frmReturn == "false") {
		scroll(0,0);
		return false;
	}
}

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("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   //alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    //alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    //alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}


function inputVal(input) {
	if(input.value != "") {
		var parentClass = input.parentNode.className;
		parentClass = parentClass.replace(/missing/g,"");
		//parentClass = "";
		input.parentNode.className = parentClass;
	}
}
function radioVal(input) {
	var parent = input.parentNode.parentNode;
	var parentClass = parent.className;
	parentClass = parentClass.replace("missing","");
	parent.className = "";
}

function initForm() {
	if(pageForm = document.getElementById('frmForm')) {
		pageForm.onsubmit = function() { return formCheck(this); }
	}
}

addLoadEvent(initForm);
addLoadEvent(initLinker);	// run initLinker onLoad
addLoadEvent(emailCloak);