<html>
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\" />
<title>无标题文档</title>
<script type=\"text/javascript\" language=\"javascript\">
function selectAllDels()
{
var allCheckBoxs = document.getElementsByName(\"preDelCheck\");
var desc = document.getElementById(\"allChecked\");
var selectOrUnselect=false;
for(var i = 0; i < allCheckBoxs.length; i ++ )
{
if(allCheckBoxs[i].checked){
selectOrUnselect=true;
break;
}
}
if (selectOrUnselect)
{
_allUnchecked(allCheckBoxs);
}else
{
_allchecked(allCheckBoxs);
}
}
function _allchecked(allCheckBoxs){
for(var i = 0; i < allCheckBoxs.length; i ++ )
{
allCheckBoxs[i].checked = true;
}
}
function _allUnchecked(allCheckBoxs){
for(var i = 0; i < allCheckBoxs.length; i ++ )
{
allCheckBoxs[i].checked = false;
}
}
</script>
</head>
<body>
<p>test</p>
<form>
<input type=\"checkbox\" name=\"preDelCheck\" value=\"cream\">ID1
<input type=\"checkbox\" name=\"preDelCheck\" value=\"sugar\" >ID2
<input type=\"checkbox\" name=\"preDelCheck\" value=\"sugar\">ID3
<input type=\"checkbox\" name=\"preDelCheck\" value=\"sugar\">ID4
<input type=\"checkbox\" name=\"preDelCheck\" value=\"sugar\">ID5
<input type=\"button\" id=\"allChecked\" value=\"全选/取消全选\" onClick=\"selectAllDels()\">
</form>
</body>
</html>
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