<!--

// Path to images directory
var gsPath    = "../../images/";

function imgOff(sName) {
	if (document.images) {
		document[sName].src = gsPath + sName + "_off.gif";
	}
}

function imgOn(sName) {
	if (document.images) {
		document[sName].src = gsPath + sName + "_on.gif";
	}
}

function openWindow(url,w,h) {
// parameters:	url = URL of the popup window
// 				w = width
// 				h = height
	leftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	topPosition = (screen.height) ? (screen.height-h)/2 : 0;
	var windowprops = 'width=' + w + ',height=' + h + ',top='+ topPosition +',left='+ leftPosition +',toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no';
	var popup = window.open(url,'remote2',windowprops);
	popup.focus();
}

function openWindow2(url,w,h) {
// parameters:	url = URL of the popup window
// 				w = width
// 				h = height
	leftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	topPosition = (screen.height) ? (screen.height-h)/2 : 0;
	var windowprops = 'width=' + w + ',height=' + h + ',top='+ topPosition +',left='+ leftPosition +',toolbar=no,location=no,directories=no,status=no,scrollbars=no,menubar=no';
	var popup = window.open(url,'remote2',windowprops);
	popup.focus();
}

function openInstr(url,w,h) {
// parameters:	url = URL of the popup window
// 				w = width
// 				h = height
	leftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	topPosition = (screen.height) ? (screen.height-h)/2 : 0;
	var windowprops = 'width=' + w + ',height=' + h + ',top='+ topPosition +',left='+ leftPosition +',toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no';
	var popup = window.open(url,'instr',windowprops);
	popup.focus();
}

function imgOrg() {
	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 preloadImages() {
	var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
	var i,j=d.MM_p.length,a=preloadImages.arguments; 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_findObj(n, d) {
	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 && document.getElementById) x=document.getElementById(n); return x;
}

function imgShow() {
	var i,j=0,x,a=imgShow.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 popupWindow(url,winName,w,h,scrollbars,resizable) {
/*
**	parameters: url = URL of the popup window
**	winName = window name
**	w = width
**	h = height
**	scrollbars = use scrollbars?
**	resizable = is window resizeable?
*/
	leftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	topPosition = (screen.height) ? (screen.height-h)/2 : 0;
	var windowprops = 'width=' + w + ',height=' + h + ',top='+ topPosition +',left='+ leftPosition +',toolbar=no,location=no,directories=no,status=no,scrollbars=' + (scrollbars ? 'yes' : 'no') + ',resizable=' + (resizable ? 'yes' : 'no') + ',menubar=no';
	var popup = window.open(url,winName,windowprops);
	//opener allows popup windows to communicate with it's owner
	//please review http://www.webreference.com/js/tutorial1/opener.html for more information on opener
	if (popup.opener == null) {		//check if opener property exists
		popup.opener = self;		//define opener property
	}
	popup.focus();
}
// check email
function navLoginCheckEmail(sEMail) {
	var sRegular = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
	if (sRegular.test(sEMail)) 
		return true;
	else 
		return false;
}
// remove the whitespace of head and tail of a string
function navLoginTrim(str) {
	return((str.replace(/^\W+/,'')).replace(/\W+$/,'') );
}
// Nav Login Form Validator
function loginNavFormValid() {
	oForm = document.formLoginNav;
	if(!navLoginCheckEmail(navLoginTrim(oForm.email.value))) {
		alert("Please enter a valid email address.");
		oForm.email.focus();
		return false;
	}
	if(navLoginTrim(oForm.password.value).length < 4) {
		alert("Please enter a valid password, at least 4 characters long.");
		oForm.password.value = "";
		oForm.password.focus();
		return false;
	}
	if(oForm.password.value == "~~~~~~~~~~") {
		alert("Please enter a valid password, at least 4 characters long.");
		oForm.password.value = "";
		oForm.password.focus();
		return false;
	}
	return true;
}
//-->