日期:2014-05-16 浏览次数:20493 次
<input id="Text1" name="txt1" type="text" onblur="return text_onblur"/>
<img id="img1" alt="" src="3869245_175711061690_2.jpg" style="width: 22px; height: 20px" />
<input id="Text7" readonly="readonly" type="text" value="必须填写" class="txt" /><br />
y = document.getElementById(("Text" + name));
aimg = "img" + name;
atext="Text"+(name+6);
if (y.value == "") {
aimg.src = "禁止.jpg";
aimg.style = "width: 22px; height: 20px";
atext.value = "此项不能为空";
}
楼主可以试试下面的代码:
<input id="Text1" name="txt1" type="text" onblur="return onText1_Blur(this);"/>
<img id="img1" alt="" style="width: 100px; height: 100px" />
<input id="Text7" readonly="readonly" type="text" value="必须填写" class="txt" /><br />
<script>
var img = document.getElementById('img1');
function onText1_Blur(sender,args){
img.src = 'http://avatar.profile.csdn.net/F/A/A/2_w362435819.jpg';
}
</script>
------解决方案--------------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script>
function text_onblur(name) {
y = document.getElementById(("Text" + name));
aimg = "img" + name;
atext = "Text" + (name + 6);
if (y.value == "") {
document.getElementById(aimg).src = "禁止.jpg";
document.getElementById(aimg).style = "width: 22px; height: 20px";
document.getElementById(atext).value = "此项不能为空";
}
}
</script>
</head>
<body>
<input id="Text1" name="txt1" type="text" onblur="text_onblur(1)"/>
<img id="img1" alt="" src="3869245_175711061690_2.jpg" style="width: 22px; height: 20px" />
<input id="Text7" readonly="readonly" type="text" value="必须填写" class="txt" /><br />
</body>
</html>