
<!--
//图片按比例缩放
var flag=false;
function DrawImage(ImgD,i,j){
    var image=new Image();
    var iwidth = i;  //定义允许图片宽度
    var iheight = j;  //定义允许图片高度
    image.src=ImgD.src;
    if(image.width>0 && image.height>0){
    flag=true;
    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;
        }
        //ImgD.alt=image.width+"×"+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.alt=image.width+"×"+image.height;
        }
    }
} 
//调用：<img src="图片" onload="javascript :DrawImage(this,100,80)">
//-->
function DrawImage1(ImgD,i){
	var image=new Image();
	image.src=ImgD.src;
	if(image.width>0 && image.height>0){
	flag=true;
		if (image.height>i){
			ImgD.height=i;
			ImgD.width=(image.width*i)/image.height;
		}
		else
		{
			ImgD.height=image.height;
			ImgD.width=image.width;
		}
	
	}
} 

function DrawImage2(ImgD,i){
	var image=new Image();
	image.src=ImgD.src;
	if(image.width>0 && image.height>0){
	flag=true;
		if (image.width>i){
			ImgD.width=i;
			ImgD.height=(image.height*i)/image.width;
		}
		else
		{
			ImgD.height=image.height;
			ImgD.width=image.width;
		}
	
	}
} 