<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/> <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/> </head> <body> <nav class="navbar navbar-default"> <div class="container-fluid"> </div> </nav> <div class="col-md-6 well"> <hr style="border-top:1px dotted #ccc;"> <div class="col-md-8"> <div class="form-inline" style="text-align:center;"> <select id="choice" class="form-control" onchange="changeImage()()"> </select> </div> <br /> </div> </div> </body> </html>
function changeImage(){ var choice = document.getElementById('choice').value; if(choice == ""){ alert("No Image Selected!"); }else{ var image = choice; } var result=document.getElementById('result'); result.removeAttribute('style'); result.innerHTML="<img src='images/"+image+".jpg' width='100%' height='250px'/>"; }