function DrawImage(ImgD , nMaxWidth , nMaxHeight){
	
	var nWidth , nHeight;
	var image = new Image(); 
	image.src = ImgD.src;
	
	nWidth = image.width;
	nHeight = image.height;
	
	if(nWidth <= nMaxWidth && nHeight <= nMaxHeight) return;
	
	switch(nWidth > nHeight){
		
		case true:
			
			ImgD.width = nMaxWidth;
			ImgD.height = (nHeight * nMaxWidth) / nWidth;
			
			break;
		
		case false:
			
			ImgD.height = nMaxHeight;
			ImgD.width = (nWidth * nMaxHeight) / nHeight;
			
			break;
			
	}
	
}