random

<html>
<head>
<script>
var arrayImg = new Array();

arrayImg[0] = "http://fpoimg.com/100x100";
arrayImg[1] = "http://fpoimg.com/150x150";
arrayImg[2] = "http://fpoimg.com/200x200";
arrayImg[3] = "http://fpoimg.com/250x250";
arrayImg[4] = "http://fpoimg.com/300x300";
arrayImg[5] = "http://fpoimg.com/350x350";
arrayImg[6] = "http://fpoimg.com/400x400";

var arrayName = ["a","b","c","d","e","f","g"];


/*arrayImg[0] = "http://fpoimg.com/100x100";
arrayImg[1] = "http://fpoimg.com/150x150";
arrayImg[2] = "http://fpoimg.com/200x200";
arrayImg[3] = "http://fpoimg.com/250x250";
arrayImg[4] = "http://fpoimg.com/300x300";
arrayImg[5] = "http://fpoimg.com/350x350";
arrayImg[6] = "http://fpoimg.com/400x400";*/


getRandomImage();

function getRandomImage() {
   var num = Math.floor( Math.random() * arrayImg.length );
   var imgStr = '<img src="' + arrayImg[ num ] + '" alt = "">';
   var div = document.getElementById("rImage");
   div.innerHTML = imgStr;
   var text = document.getElementById("searchText").value;
   div.innerHTML = "<h3>"+text+ ":" + arrayName[num]  + "</h3>" + "<br>" + div.innerHTML;

}
</script>
</head>
<body>

    <input type="text" id="searchText">
    <input type="button" onclick="getRandomImage()" value="click">
    <div id="rImage"></div>

</body>

</html>