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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
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window.onload = function(){
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    txt1.select();
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<form action="" method="get" name="form1">
<input type="text" id="txt1" name="text1" value="用户名" /><br />
<input type="button" value="提交"  onclick="document.forms[0].reset()" /><br />
<input type="image" src="images/tj.gif" alt="" /><br />
<input type="text" name="" id="" value="这是密码" onblur="alert('Blur')" onchange="alert('change')" />
<textarea name="" id="" onfocus="this.select()" cols="30" rows="10">这是爱的呼唤</textarea>
</form>


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