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事件处理函数OnEnter OnExit 使用一例 |
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作者:未知 来源:月光软件站 加入时间:2005-2-28 月光软件站 |
只留一个输入框空缺
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>OnEnter OnExit 使用一例</title> <STYLE> .in{ BORDER-RIGHT: black 1px solid; BORDER-TOP: black 1px solid; FONT-SIZE: 9pt; BORDER-LEFT: black 1px solid; COLOR: #000000; BORDER-BOTTOM: black 1px solid; HEIGHT: 17px; BACKGROUND-COLOR: #e4e4e4; } </STYLE> <SCRIPT language=JavaScript> <!-- function OnEnter( field ) { if( field.value == field.defaultValue ) { field.value = ""; } } function OnExit( field ) { if( field.value == "" ) { field.value = field.defaultValue; } } --> </SCRIPT> </head> <body> <TABLE> <TD> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> <INPUT onblur=OnExit(this) class="in" onfocus=OnEnter(this) value=Express> </TD> </TABLE> </body> </html>

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