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

function nav_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.nav_p) d.nav_p=new Array();
    var i,j=d.nav_p.length,a=nav_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.nav_p[j]=new Image; d.nav_p[j++].src=a[i];}}
}

function nav_findObj(n, d) { //v3.0
  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=nav_findObj(n,d.layers[i].document); return x;
}

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

function submitform()
{
  document.myform.submit();
}
		function ok_email(emform) {
	
	var regex=/^(([\-\w]+)\.?)+@(([\-\w]+)\.?)+\.[a-zA-Z]{2,4}$/;
	if(regex.test(emform.value)) {
		return true;
	} else {
		return false;
	}
}

function ok_form(loginform) {
	if(document.loginform.email.value== ""){
		alert("Please type in your email address");
		loginform.email.focus();
		return false; 
		} 

	if(ok_email(document.loginform.email)== false) {
		alert("Please enter a valid email address");
		loginform.email.focus();
		loginform.email.select();
		return false; 
		}

	if(document.loginform.pass.value == ""){
		alert("Please type in your password");
		loginform.pass.focus();
		return false; 
		} 
	return true;
}

function ok_form2(signupform) {
	if(document.signupform.email.value== ""){
		alert("Please type in your email address");
		signupform.email.focus();
		return false; 
		} 

	if(ok_email(document.signupform.email)== false) {
		alert("Please enter a valid email address");
		signupform.email.focus();
		signupform.email.select();
		return false; 
		}

	return true;
}