var oImage = new Image();
oImage.onload = function () {
alert("URL exists");
}
oImage.onerror = function () {
alert("URL does not exist");
}
oImage.src = "http://www.csdn.net/Images/logo_csdn2.gif";
oImage.onload = function () {
alert("URL exists");
}
oImage.onerror = function () {
alert("URL does not exist");
}
oImage.src = "http://www.csdn.net/Images/logo_csdn2.gif";
<script type="text/javascript">
function picFun(){
var oImages=document.Images;
for(var i=0;i<oImages.length){
if(!oImages[i].complete)alert("图片地址错误或延时")//这里可以增加处理函数
}
}
</script>
下面的代码放在页面的尾部
<script for="window" event="onload" type="text/javascript">
picFun();
</script>