js的焦点有关问题，请各位帮忙
日期：2014-05-16 浏览次数：20377 次
紧急求助js的焦点问题，请各位帮忙
项目中的画面，文本框输入一定字符之后自动将焦点设到下一项（已通过onkeyup事件和focus方法实现），另外输入结束之后检查是否正确（已通过onblur事件实现）。目前现象是，检查输入不正确后，先弹出的消息，之后才将该项用红色标记；如何才能实现先标红，后弹消息呢？（推测是focus改变焦点产生的影响）
请各位一定帮帮忙啊
代码如下：
<html>
<head>
<title> Untitled </title>
<script language= "javascript ">
function nextFocus(obj){
if(obj.value.length > = obj.maxLength){
document.form1.txt2.focus();
}
}
function check(obj){
if(obj.value!= "000000 "){
obj.style.backgroundColor= "#FF0000 ";
alert( "Error! ");
}
}
</script>
</head>
<body>
<form name= "form1 ">
<input type= "text " name= "txt1 " maxlength= "6 " onkeyup= "nextFocus(this) " onblur= "check(this) ">
<input type= "text " name= "txt2 ">
</form>
</body>
</html>
------解决方案--------------------
function check(obj){
if(obj.value!= "000000 "){
obj.focus();
obj.style.backgroundColor= "#FF0000 ";
alert( "Error! ");
}
}
------解决方案--------------------
<html>
<head>
<title> Untitled </title>
<script language= "javascript ">
var checked = false;
function nextFocus(obj){
if(obj.value.length > = obj.maxLength){
check(obj);
document.form1.txt2.focus();
}
}
function check(obj){
if(obj.value!= "000000 "){
obj.style.backgroundColor= "#FF0000 ";
if(event.type== "blur ") alert( "Error! ");
}
}
</script>
</head>
<body>
<form name= "form1 ">
<input type= "text " name= "txt1 " maxlength= "6 " onkeyup= "nextFocus(this) " onblur= "check(this) ">
<input type= "text " name= "txt2 ">
</form>
</body>
</html>
项目中的画面，文本框输入一定字符之后自动将焦点设到下一项（已通过onkeyup事件和focus方法实现），另外输入结束之后检查是否正确（已通过onblur事件实现）。目前现象是，检查输入不正确后，先弹出的消息，之后才将该项用红色标记；如何才能实现先标红，后弹消息呢？（推测是focus改变焦点产生的影响）
请各位一定帮帮忙啊
代码如下：
<html>
<head>
<title> Untitled </title>
<script language= "javascript ">
function nextFocus(obj){
if(obj.value.length > = obj.maxLength){
document.form1.txt2.focus();
}
}
function check(obj){
if(obj.value!= "000000 "){
obj.style.backgroundColor= "#FF0000 ";
alert( "Error! ");
}
}
</script>
</head>
<body>
<form name= "form1 ">
<input type= "text " name= "txt1 " maxlength= "6 " onkeyup= "nextFocus(this) " onblur= "check(this) ">
<input type= "text " name= "txt2 ">
</form>
</body>
</html>
------解决方案--------------------
function check(obj){
if(obj.value!= "000000 "){
obj.focus();
obj.style.backgroundColor= "#FF0000 ";
alert( "Error! ");
}
}
------解决方案--------------------
<html>
<head>
<title> Untitled </title>
<script language= "javascript ">
var checked = false;
function nextFocus(obj){
if(obj.value.length > = obj.maxLength){
check(obj);
document.form1.txt2.focus();
}
}
function check(obj){
if(obj.value!= "000000 "){
obj.style.backgroundColor= "#FF0000 ";
if(event.type== "blur ") alert( "Error! ");
}
}
</script>
</head>
<body>
<form name= "form1 ">
<input type= "text " name= "txt1 " maxlength= "6 " onkeyup= "nextFocus(this) " onblur= "check(this) ">
<input type= "text " name= "txt2 ">
</form>
</body>
</html>
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