Uncaught ReferenceError: xxx is not defined

Question

写了一个函数，在页面中引用，加载图片的时候调用这个函数。函数生效了，但是在控制台有显示报错。把那个函数单独拿出来做个demo的时候，也不报错，但是和其他的js代码放在一起就一直报错，不知道什么原因。希望有懂的大神们指点一下。Uncaught ReferenceError: AutoResizeImage is not defined代码如下js//图片等比缩放function AutoResizeImage(maxWidth, maxHeight, objImg) {    var img = new Image();    img.src = objImg.src;    var hRatio;    var wRatio;    var Ratio = 1;    var w = img.width;    var h = img.height;    wRatio = maxWidth / w;    hRatio = maxHeight / h;    if (maxWidth == 0 && maxHeight == 0) {        Ratio = 1;    } else if (maxWidth == 0) {//        if (hRatio < 1) Ratio = hRatio;    } else if (maxHeight == 0) {        if (wRatio < 1) Ratio = wRatio;    } else if (wRatio < 1 || hRatio < 1) {        Ratio = (wRatio <= hRatio ? wRatio : hRatio);    }    if (Ratio < 1) {        w = w * Ratio;        h = h * Ratio;    }    objImg.height = h;    objImg.width = w;}html<center><img onerror="this.src='/Content/images/nopic.jpg'" data-src="@BuildEffectImage(effectImage, 0, 625)" src="@ConfigHelper.CdnPrefix/Content/images/NewHome/white.png" class="coverimage" height="625" onload="AutoResizeImage(830, 0, this);"  /></center>报错图片