Imageresize causing an Internet Explorer cannot display the webpage error (IE8)

Hi

I have a simple application that uploads an image and resizes it if its too large. It works great on all browsers apart from IE (testing in IE8). When I disable the resize code, it works ok. If I leave the imageresize code in I receive a 'Internet Explorer cannot display the webpage error'. Does anyone have any idea what is causing this or how to find out more about the error?

The resize code is below:

if (myImageInfo.width < maxWidth) {
                        ImageResize(myImage,maxWidth,"");    
                        myImageInfo=imageInfo(myImage);
                        if (myImageInfo.height<maxHeight) {
                            ImageResize(myImage,"",maxHeight);    
                            myImageInfo=imageInfo(myImage);
                        }
                    } else if (myImageInfo.width > maxWidth) {
                        ImageResize(myImage,maxWidth,"");    
                        myImageInfo=imageInfo(myImage);
                        if (myImageInfo.height<maxHeight) {
                            ImageResize(myImage,"",maxHeight);
                            myImageInfo=imageInfo(myImage);    
                        }
                    }

Cheers

Shaun