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<HTML>
<HEAD>
<TITLE>document 01</TITLE>
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
<!--
 function myFunc()  {
 var x=document.forms["myForm"]["fname"].value;
 if(x==5)
 {
    document.write("<img src="+"limblack.jpg"+">");
    return false;
 }
 }

//-->
</SCRIPT>
</HEAD>
<BODY>

<div id="myAnchor">
<form name="myForm" onsubmit="return myFunc()" method="post">
Enter Number: <input type="text" name="fname">
<input type="submit" value="Submit">
</form>
</div>
</BODY>
</HTML>