//====图片缩略=====================================================
    //--调用:onload="BuildSmallPic(this,234,156)"
function BuildSmallPic(ImgD,n_MaxWidth,n_MaxHeight){   
	var image=new Image();   
	image.src=ImgD.src;   
	if(image.width>0 && image.height>0){    
		if(image.width/image.height >= n_MaxWidth/n_MaxHeight){   
			if(image.width>n_MaxWidth){       
				ImgD.width=n_MaxWidth;   
				ImgD.height=(image.height*n_MaxWidth)/image.width;   
			}else{   
				ImgD.width=image.width;       
				ImgD.height=image.height;   
			}   
			//ImgD.alt=image.width+"×"+image.height;   
		}   
		else{   
			if(image.height>n_MaxHeight){       
				ImgD.height=n_MaxHeight;   
				ImgD.width=(image.width*n_MaxHeight)/image.height;             
			}else{   
				ImgD.width=image.width;       
				ImgD.height=image.height;   
			}   
			//ImgD.alt=image.width+"×"+image.height;   
		}   
	}   
}   
//=================================================================