var proMaxHeight = 96;  
var proMaxWidth = 96;  
   
function proDownImage(ImgD){  
	var image=new Image();  
	image.src=ImgD.src;  
	if(image.width>0 && image.height>0){
		var rate = (proMaxWidth/image.width < proMaxHeight/image.height)?proMaxWidth/image.width:proMaxHeight/image.height;  
		if(rate <= 1){
			ImgD.width = image.width*rate;  
			ImgD.height =image.height*rate;  
		}
		else{
			ImgD.width = image.width;  
			ImgD.height =image.height;  
		}
	}
}