<script> function dclick() { form1.text.value = "您双击了页面！"; }
function Click() { form1.text.value += "您单击了页面"; }
function down() { form1.text.value = "您按下了鼠标"; }
function up() { form1.text.value = "您释放了鼠标" } </script></head>
<body ondblclick="dclick()" onmousedown="down()" onmouseup="up()" onclick="click()"><form action="" id="form1" name="form1" method="post"><label><textarea name="text" cols="50" rows="2"></textarea></label></form></body>
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