diff --git a/public/partdb.js b/public/partdb.js
index 2ac988c..e6974cd 100644
--- a/public/partdb.js
+++ b/public/partdb.js
@@ -8,6 +8,8 @@
 var last_search = null;
 // the collection of parts
 var parts = null;
+// last selected part
+var part_id = null;
 // part field to populate
 const fields = ["name", "description", "details", "package", "manufacturer", "mpn", "family", "datasheet", "page", "location", "stock"];
 // URLs to set
@@ -41,10 +43,6 @@ function search()
 function results()
 {
 	const results = document.getElementById('results');
-	let part_id = -1;
-	if (results.selectedIndex >= 0) {
-		part_id = parseInt(results.options[results.selectedIndex].value);
-	}
 	results.innerHTML = null;
 	for (const part of parts) {
 		const option = document.createElement('option');
@@ -52,9 +50,9 @@ function results()
 		option.innerHTML = part.name;
 		if (part.description) {
 			option.innerHTML += " (" + part.description + ")";
-			if (part_id == part.id) {
-				option.selected = "selected";
-			}
+		}
+		if (part_id == part.id) {
+			option.selected = "selected";
 		}
 		results.appendChild(option);
 	}
@@ -84,9 +82,9 @@ function select_part()
 {
 	const results = document.getElementById('results');
 	if (results.selectedIndex >= 0) {
-		let part_selected = parseInt(results.options[results.selectedIndex].value);
+		part_id = parseInt(results.options[results.selectedIndex].value);
 		for (const part of parts) {
-			if (part.id == part_selected) {
+			if (part.id == part_id) {
 				//console.log(part);
 				// populate part fields
 				for (const field of fields) {