//--Submit email function
function NewsletterPopup() {
	 if(document.getElementById("txtEmail").value == "") {
		 alert("You must enter your email address");
		 window.focus();
		 document.getElementById("txtEmail").focus();
		 return;
	 }
	 if(new String(document.getElementById("txtEmail").value).indexOf("@") == -1) {
		 alert("You must first enter a valid email address");
		 window.focus();
		 document.getElementById("txtEmail").focus();
		 return;
	 }
	 if(new String(document.getElementById("txtEmail").value).indexOf(".") == -1) {
		 alert("You must first enter a valid email address");
		 window.focus();
		 document.getElementById("txtEmail").focus();
		 return;
	 }
	 window.open("sendmail.php?email=" + document.getElementById("txtEmail").value, null, "left=" + (screen.availWidth/2-225) + ",top=" + (screen.availHeight/2-150) + ",height=300,width=450,location=no,menubar=no,resizable=no,toolbar=no");
}
//------------------------------------