1 files changed, 29 insertions, 0 deletions
diff --git a/src/js/background.js b/src/js/background.js
new file mode 100644
index 0000000..f8a7684
--- /dev/null
+++ b/src/js/background.js
@@ -0,0 +1,29 @@
+function set_background_image(){
+    let date = new Date();
+    let current_hour = date.getHours() 
+    if(current_hour <= 8 || current_hour >= 20){
+        var photo = "night.jpg"
+    } else if(current_hour <= 10 || current_hour > 17){
+        var photo = "change.jpg"
+    } else {
+        var photo = "day.jpg"
+    }
+    let btn = document.getElementById("loadBtn")
+    if(btn){
+        btn.remove()
+    }
+    if(!document.getElementById("backgroundId")){
+        document.body.style.backgroundImage = `url('/res/${photo}')`; 
+        let desc = document.createElement("p")
+        desc.id = "backgroundId"
+        desc.innerHTML = "Background images in the public domain, painted by <a href=\"https://artvee.com/artist/ivan-konstantinovich-aivazovsky/\">Ivan Konstantinovich Aivazovsky.</a>"
+        footer.appendChild(desc)
+    }
+}
+let el = document.createElement("a")
+el.id = "loadBtn"
+el.innerText = "load background"
+el.onclick = set_background_image
+let footer = document.getElementsByTagName("footer")[0]
+footer.appendChild(el)
+