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<title>Untitled Document</title>
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<script language="javascript" type="text/javascript">
function fncSubmit()
{
if(document.form1.txt1.value == "")
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<meta charset=utf-8>. <title>Untitled Document</title>. </head>. <body>. <script language=javascript type=text/javascript> function fncSubmit().
Typology: Exercises
2022/2023
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alert('Please input Input 1'); document.form1.txt1.focus(); return false; } else if(document.form1.txt2.value == "") { alert('Please input Input 2'); document.form1.txt2.focus(); return false; } document.form1.submit(); }