var flag=false;
function DrawImage(ImgD,ImgW,ImgH){
var image=new Image();
var iwidth =ImgW; //定义允许图片宽度，当宽度大于这个值时等比例缩小
var iheight =ImgH; //定义允许图片高度，当高度大于这个值时等比例缩小
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,120,160)">


//搜索显示
    function show() {
        if ($('input[@name=BrandPosition][@checked]').val() =='1') 
        {
        $('#Packing').css('display', 'block');
        $('#Eff').css('display', 'none');
        $('#Cate').css('display', 'none');
        $('#chandi').css('background-color','#DDE7FA');
        }
        else
        {
         $('#Packing').css('display', 'none');
        $('#Eff').css('display', 'block');
        $('#Cate').css('display', 'block');
        $('#chandi').css('background-color','white');
        }
        $('#Eff input[@type=checkbox]').attr('checked','');
        $('#Cate input[@type=checkbox]').attr('checked','');
        $('#Packing input[@type=checkbox]').attr('checked','');
    }