/*------------------------------------防空--------------------------------*/
<html>
<head>
<script language="javascript">
String.prototype.Trim = function() {
return this.replace(/(^\s*)|(\s*$)/g, "");
}
String.prototype.LTrim = function() {
return this.replace(/(^\s*)/g, "");
}
String.prototype.RTrim = function() {
return this.replace(/(\s*$)/g, "");
}
function check(tag){
var s = tag.value.Trim();
if(s==null||s==""){
tag.nextSibling.innerHTML="not null!";
}else{
tag.nextSibling.innerHTML="ok";
}
}
function clear2(tag){
tag.nextSibling.innerHTML="";
}
</script>
</head>
<body>
Name:<input type="text" id="name" onBlur="check(this);" onFocus="clear2(this);"/><span></span><br/>
Pass:<input type="password" id="pass" onBlur="check(this);" onFocus="clear2(this);"/><span/>
</body>
</html>
/*---------------------删除时弹出对话框-----------------------------*/
<a href="categories.do?action=del&id=${c.id }" onClick="return confirm('确定要删除这个分类吗？');">删除</a>
/*---------------------------检验文本框数据是否为空-----------------------------*/
<script type="text/javascript">
String.prototype.Trim = function() {
return this.replace(/(^\s*)|(\s*$)/g, "");
}
function check() {
var categoryname = document.categoryForm.name.value.Trim();
if(categoryname==null||categoryname=="") {
alert("类别名不能为空,请输入.");
document.categoryForm.name.focus();
return;
}
with (document.getElementById("categoryForm")) {
method = "post";
action="categories.do?action=add";
submit();
}
}
</script>
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