Prepare!

document.addEventListener("load",
   function() {

      var body = document.getElementsByTagName("BODY");
      if (!body) return;

      var isIgnored = function(node) {
         var bad = /^(SCRIPT)|(STYLE)|(OPTION)|(TEXTAREA)|(INPUT)|(\#cdata\-section)|(\#comment)$/i;
         var result = false;
         while (node && !result) {
            result = (node.nodeName.match(bad) || 
                     ((node.nodeName == "A") && node.href));
            node = node.parentNode;
         }
         return result;
      }

      var nodeIterator = document.createNodeIterator( 
         body[0], 
         NodeFilter.SHOW_TEXT, 
         { acceptNode : function (node) {
            return (/\S+/.test(node.data) && !isIgnored(node)) ?
               NodeFilter.FILTER_ACCEPT:
               NodeFilter.FILTER_REJECT;
           }
         }, 
         true
      );

      var a = new Array();
      var textNode;
      while ((textNode = nodeIterator.nextNode())) { 
         if (!textNode.parentNode.style) continue;
         if (textNode.parentNode.style.cursor != "") continue;
         if (textNode.parentNode.currentStyle.cursor != "default") continue;
         a.push(textNode);
      }

      if (!a.length) return;
      var ss = false;
      var sheet = null;
      for (var i = 0; i < document.styleSheets.length; i++) {
         sheet = document.styleSheets[i];
         ss = (!sheet.media || !sheet.media.length);
         if (ss) break;
         for (var j = 0, m; m = sheet.media[j]; j++) {
            ss = (m.match(/^(\*)|(all)|(screen)$/i));
            if (ss) break;
         }
      }

      if (ss) sheet.insertRule(
         "SPAN.crsrTxt { \
         font: inherit !important; \
         color: inherit !important; \
         background: none !important; \
         padding: 0 0 0 0 !important; \
         margin: 0 0 0 0 !important; \
         clear: none !important; \
         z-index: inherit !important; \
         float: none !important; \
         display: inline !important; \
         cursor: text !important; }", 0);

      while ((textNode = a.pop())) {
         var span = document.createElement("span");
         if (ss)   span.className = "crsrTxt";
         else {
            span.style.color = "inherit";
            span.style.background = "none";
            span.style.padding = "0 0 0 0";
            span.style.margin = "0 0 0 0";
            span.style.clear = "none";
            span.style.zIndex = "inherit";
            span.style.float = "none";
            span.style.display = "inline";
            span.style.cursor = "text";
         }
         textNode.parentNode.insertBefore(span, textNode);
         span.appendChild(textNode);
      }
   }, 0);

• Script may not work on poorly coded HTML and JavaScript websites (foxnews.com)
  
• There's a known crash bug in Opera 9.20 when using this script on newegg.com
  

if (document.domain.match(/^(www\.)?titantv\.com$/)) {
   document.addEventListener("load",
      function(e) {
         var inps = document.getElementsByTagName("input");
         for (var i = 0, o; o = inps[i]; i++) {
            if (o.type != "image") continue;
            if (o.getAttribute("alternate") != "Print") continue;
            o.onclick = "window.open(document.forms.Form1.__PrintUrl.value,'','');";
            break;
         }
      }, 0);
}

if (document.domain.match(/\.disney\.go\.com$/)) {
   window.opera.defineMagicFunction("DetectFlash",
      function(RealFunc, oThis, nversion, redirect, override) {
         return 1;
      });
}

document.addEventListener("load",
  function(e) {
    if (!document.body) document.body = document.getElementsByTagName("body")[0];
    if (!document.body) return;
    if (!document.links) return;
    for (var i = 0; i < document.links.length; i++) {
      var href = document.links[ i ].getAttribute("href");
      if (!href) continue;
      if (!href.match(/\.pdf$/) &&
          !href.match(/\.doc$/) &&
          !href.match(/\.xls$/))
          continue;

      if (!document.blankIframeHandler) {
        document.blankIframeHandler = document.createElement("iframe");
        with (document.blankIframeHandler) {
          setAttribute("src", "about:blank");
          setAttribute("id", "blankIframeHandler");
          setAttribute("name", "blankIframeHandler");
          setAttribute("style", "display:none;visibility:hidden;");
        }
        document.body.appendChild(document.blankIframeHandler);
      }
      document.links[ i ].setAttribute("target", "blankIframeHandler");
    }
  }, false);