Click to Split

ClickToSplit.js

function onclick(e) {
	var range;
        if (document.caretRangeFromPoint) { 
          range = document.caretRangeFromPoint(e.pageX, e.pageY);
        } else if (e.rangeParent) { 
          range = document.createRange();
          range.setStart(e.rangeParent, e.rangeOffset);
        }
	
       var textContainer = range.startContainer;
       var node = textContainer.parentNode; 
       var origValue = node.innerHTML;
       var textToKeep = origValue.substr(0, range.startOffset);
       var textToMove = origValue.substr(range.startOffset);
       node.innerHTML = textToKeep;
       //Do something with textToMove
  }