// JavaScript Document

function MM_preloadImages() { //v3.0
	var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
	var i,j=d.MM_p.length,a=new Array('images/star.gif','images/border_top.gif','images/border_left.gif','images/border_bottom.gif','images/border_right.gif','images/header.gif','images/linestrip.gif','images/vertical.gif','images/arrow.gif','images/arrow_right.gif','images/arrow_left.gif','images/hstripe.gif'); for(i=0; i<a.length; i++)
	if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function alpha_(field) {
	k = field.value
	for(i=0; i<k.length; i++) {
		if(k.charAt(i) >= 'A' && k.charAt(i) <= 'Z' || k.charAt(i) >= 'a' && k.charAt(i) <= 'z' || k.charAt(i) >= '0' && k.charAt(i) <= '9' || k.charAt(i) == '_') {
		} else {
			alert("Non-Alphanumeric Characters are not Allowed")
			return false;
    	}
    }
}

function focusCursor() {
	for (var i = 0; i < document.forms.length; ++i) {
		var f = document.forms[i];
		for (var j = 0; j < f.elements.length; ++j) {
			if (f.elements[j].type == 'text' || f.elements[j].type == 'textarea') {
				f.elements[j].focus();
				return;
			}
		}
	}
}

function breadcrumb(pick1, pick2, pick3) {
	document.getElementById(pick1).className="on";
	if (pick2) {
		document.getElementById(pick2).className="on";
		if (pick3) {
			document.getElementById(pick3).className="on";
		}
	}
}

function formjoin_onSubmit() {
	var returnvalue = false;
	if (document.join.email.value == "" || document.join.email.value == " EMAIL ADDRESS") {
			alert ('You must enter your email address.');
	} else {
		var x = document.join.email.value;
		var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		if (filter.test(x)) {
			returnvalue = true;
		} else {
			alert('Please enter a valid email address.');
		}
	}
	return returnvalue;
}

function fixExternalLinks() {
	var a = document.getElementsByTagName('a');
	for(var i=0; i<a.length; i++) {
		if(a[i].getAttribute('href') && (a[i].getAttribute('href').indexOf('http') == 0) && (a[i].getAttribute('href').toString().indexOf(window.location.host) == -1))
			a[i].onclick = function(event){
				var event = event || window.event;
				if(event.preventDefault)
					event.preventDefault();
				if(event.cancelBubble)
					event.cancelBubble = true;
				window.open(this.href);
				return false;
			}
	}
}

$(document).observe("dom:loaded", function(){
	fixExternalLinks();
});