// Otevřít všechny PDF, PPT, TIF, DOC(x) v docs.google.com
 
var link, l = 0; 
 
while (link = document.links[l++]) {
 
	if (
	(link.href.toLowerCase().indexOf('.pdf') != -1 || 
  link.href.toLowerCase().indexOf('.ppt') != -1 || 
  link.href.toLowerCase().indexOf('.doc') != -1 ||
  link.href.toLowerCase().indexOf('.tif') != -1 &&
  link.href.indexOf('javascript') == -1 && 
  link.href.indexOf('file:') == -1) 
  &&  link.getAttribute("class") != 'no-google'

  ) {
  

		var newUrl = 'http://docs.google.com/viewer?url=' + link.href; 
  
                   	link.href = newUrl;

   }
};