var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function OnLoadComplete()
{
	var objFrm = document.getElementById('newsletter_form');
	objFrm.subscription[0].checked = true;
}

function ResizeMainContent()
{
	var objMain = document.getElementById('main_content');
	if (objMain.scrollHeight < 785)
		objMain.style.height = 785 + "px";
}

function SendEmail(sEncEmail)
{
	window.location = "mailto:" + decode64(sEncEmail);
}

function encode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   do {
      chr1 = input.charCodeAt(i++);
      chr2 = input.charCodeAt(i++);
      chr3 = input.charCodeAt(i++);

      enc1 = chr1 >> 2;
      enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
      enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
      enc4 = chr3 & 63;

      if (isNaN(chr2)) {
         enc3 = enc4 = 64;
      } else if (isNaN(chr3)) {
         enc4 = 64;
      }

      output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + 
         keyStr.charAt(enc3) + keyStr.charAt(enc4);
   } while (i < input.length);
   
   return output;
}

function decode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
   input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

   do {
      enc1 = keyStr.indexOf(input.charAt(i++));
      enc2 = keyStr.indexOf(input.charAt(i++));
      enc3 = keyStr.indexOf(input.charAt(i++));
      enc4 = keyStr.indexOf(input.charAt(i++));

      chr1 = (enc1 << 2) | (enc2 >> 4);
      chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
      chr3 = ((enc3 & 3) << 6) | enc4;

      output = output + String.fromCharCode(chr1);

      if (enc3 != 64) {
         output = output + String.fromCharCode(chr2);
      }
      if (enc4 != 64) {
         output = output + String.fromCharCode(chr3);
      }
   } while (i < input.length);

   return output;
}

function ValidateCommentsForm()
{
	var objName = document.getElementById('form_comments_name');
	var objEmail = document.getElementById('form_comments_email');
	var objBtn = document.getElementById('button_submitcomments');
	
	if (objName == '')
	{
		alert("Please enter your name to display on the discussion post");
		objName.focus();
		return false;
	}
	
	if (objEmail == '')
	{
		alert("Please enter your e-mail address, this is required for discussion post verification purposes");
		objName.focus();
		return false;
	}
	
	objBtn.disabled = true;
	
	return true;
}

function DisableVoteButton()
{
	var objBtn = document.getElementById('button_vote');
	objBtn.disabled = true;
	
	return true;
}