First Commit (finally lol)

export/pghrtjs.js

@@ -0,0 +1,19 @@
+var coll = document.querySelectorAll(".ltx_tocentry.ltx_tocentry_section > .ltx_ref");
+var i;
+
+for (i = 0; i < coll.length; i++) {
+  coll[i].addEventListener("click", function() {
+    this.classList.toggle("active");
+    var content = this.nextElementSibling;
+	if (content) {
+		if (content.style.maxHeight){
+			content.style.maxHeight = null;
+		} else {
+			content.style.maxHeight = content.scrollHeight + "px";
+		}
+    } else {}
+  });
+	if (coll[i].nextElementSibling) {} else {
+		coll[i].classList.add("del");
+	}
+}