diff --git a/app/main/static/js/charges.js b/app/main/static/js/charges.js
index 5ce606b..3211572 100644
--- a/app/main/static/js/charges.js
+++ b/app/main/static/js/charges.js
@@ -1,31 +1,31 @@
-const main_elt = document.getElementById("main")
+function build_chart(div_selector, data_url, project_name, category) {
+    const main_elt = document.getElementById("main")
 
-const margin = {top: 60, right: 350, bottom: 100, left: 90},
-    width = main_elt.offsetWidth * 0.95 - margin.left - margin.right,
-    height = 500 - margin.top - margin.bottom;
+    const margin = {top: 60, right: 350, bottom: 100, left: 90},
+        width = main_elt.offsetWidth * 0.95 - margin.left - margin.right,
+        height = 500 - margin.top - margin.bottom;
 
-const height_ratio = 1.2
+    const height_ratio = 1.2
 
-const tooltip_offset = {dx: 0, dy: 100}
-const tooltip_offset_dot = {dx: 20, dy: 60}
+    const tooltip_offset = {dx: 0, dy: 100}
+    const tooltip_offset_dot = {dx: 20, dy: 60}
 
-const colorScale = d3.scaleOrdinal(d3.schemeCategory10);
+    const colorScale = d3.scaleOrdinal(d3.schemeCategory10);
 
-const y_ticks_num = 5
+    const y_ticks_num = 5
 
-const legend_cell_size = 15; // colored scare size
-const legend_x = width + 20; // begin legend a bit after the end of the chart
+    const legend_cell_size = 15; // colored scare size
+    const legend_x = width + 20; // begin legend a bit after the end of the chart
 
-const dot_radius = 6;
+    const dot_radius = 6;
 
-const xScale = d3.scaleBand()
-    .range([0, width])
-    .padding(0.2);
+    const xScale = d3.scaleBand()
+        .range([0, width])
+        .padding(0.2);
 
-const yScale = d3.scaleLinear()
-    .range([height, 0])
+    const yScale = d3.scaleLinear()
+        .range([height, 0])
 
-function build_chart(div_selector, data_url, project_name, category) {
 
     var chart_title = ""
     var category_title = ""
--
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