var dmp = new diff_match_patch();

		function myDiff(doc1, doc2) {
			return dmp.diff_main(doc1, doc2);
		}

		function myPatch(doc, diffs) {
			return dmp.patch_make(doc, diffs);
		}

		function myApplyPatchToDoc(doc, patches) {
			return dmp.patch_apply(patches, doc)[0];
		}

		function launch() {
			var text1 = document.getElementById('text1').value;
			var text2 = document.getElementById('text2').value;

			var diffs = myDiff(text1, text2);

			/*
			* Add diffs (Edit obj) to the Edits stack here...
			*/
			//console.log(diffs);

			var str = "I am the very model of a modern Major-General,\nI've information vegetable, animal, and mineral,\nI know the kings of England, and I quote the fights historical,\nFrom Marathon to Waterloo, in order categorical.";

			// calculate patches
			var patches = myPatch(str, diffs);

			// results
			console.log(myApplyPatchToDoc(str, patches));

			var ds = dmp.diff_prettyHtml(diffs);
		}