Get the URL of the first <img> element (index 0) in the document:
var x = document.images[0].src;
Click the button to display the URL of the first image (index 0) in the document.
<!DOCTYPE html> <html> <body> <img src="image1.png" alt="flower" width="150" height="113"> <img src="image2.png" alt="flower" width="152" height="128"> <img src="image3.png" alt="Smiley face" width="42" height="42"> <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() {/*ww w .ja va2s .co m*/ var x = document.images[0].src; document.getElementById("demo").innerHTML = x; } </script> </body> </html>