function r(f){/in/.test(document.readyState)?setTimeout('r('+f+')',9):f()}

	r(function(){
		// Dom is ready!!!
   		// alert('DOM Ready!');

   		var nodeList = document.querySelectorAll('.h5p-crossword-input-fields-group-wrapper-clue');

   		nodeList[0].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-3.png" alt="chemistry-tool" /></div>';
   		nodeList[1].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-9.png" alt="chemistry-tool" /></div>';
   		nodeList[2].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-10.png" alt="chemistry-tool" /></div>';
   		nodeList[3].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-1.png" alt="chemistry-tool" /></div>';
   		nodeList[4].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-2.png" alt="chemistry-tool" /></div>';
   		nodeList[5].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-4.png" alt="chemistry-tool" /></div>';
   		nodeList[6].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-5.png" alt="chemistry-tool" /></div>';
   		nodeList[7].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-6.png" alt="chemistry-tool" /></div>';
   		nodeList[8].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-7.png" alt="chemistry-tool" /></div>';
   		nodeList[9].innerHTML += '<div class="custom-img"><img src="images/chemistry-tool-8.png" alt="chemistry-tool" /></div>';

});