js handles image upload

if(!/.(gif|jpg|jpeg|png|GIF|JPG|png)$/.test(file)){
alert("The image type must be one of .gif,jpeg,jpg,png") ;
return false;
}else{
var image = new Image();
image.src = file;
var height = image.height;
var width = image.width;
var filesize = image.filesize;
alert(height+"x.." +filesize);
if(width>80 && height>80 && filesize>102400){
alert('Please upload a picture of 80*80 pixels or less than 100k in size');
return false;
}
}
alert("Picture passed"); return false;