function ImageZoom(ImgD, w, h){
	var image=new Image();
	var iwidth;
	var iheight;

    if (w <= 0)
    	iwidth = 130;
    else
    	iwidth = w;

    if (h <=0 )
    	iheight = 130;
    else
    	iheight = h;

	image.src=ImgD.src;
	if(image.width>0 && image.height>0){
		if(image.width/image.height>= iwidth/iheight){
			if(image.width>iwidth){
				ImgD.width=iwidth;
				ImgD.height=(image.height*iwidth)/image.width;
			}else{
				ImgD.width=image.width;
				ImgD.height=image.height;
			}
		}else{
			if(image.height>iheight){
				ImgD.height=iheight;
				ImgD.width=(image.width*iheight)/image.height;
			}else{
				ImgD.width=image.width;
				ImgD.height=image.height;
			}
		}
        ImgD.style.display = "";
	}
}