//Check the email address entered to see if it is at least in the proper format.
function check_email(emailaddress){
   if (emailaddress.indexOf("@") == -1 || emailaddress.indexOf("@") == 0 || emailaddress.indexOf("@.") == 0 || emailaddress.indexOf(".") == -1) {
      return false;
   }else{
      return true;
   }
}

function addfav(sURL, sLabel){
   if (document.all){
      window.external.AddFavorite(sURL, sLabel);
   }else{
      alert("Sorry, your browser does not support this function.");
   }
}

/* This function will open a window and center it vetically and horizontally */
function OpenWindow(Page, WindowName, Width, Height, Scrollbars){
   //var win = null;
   LeftPosition = (screen.width) ? (screen.width - Width) / 2 : 0;
   TopPosition = (screen.height) ? (screen.height - Height) / 2 : 0;
   
   Settings = 'height='+ Height +',width='+ Width +',top='+ TopPosition +',left='+ LeftPosition+ ',scrollbars='+ Scrollbars +',resizable=1,location=0'

   window.open(Page, WindowName, Settings)
}