var flag=false;
function drawimage(imgd){
   var image=new image();
   image.src=imgd.src;
   if(image.width>0 && image.height>0){
    flag=true;
    if(image.width/image.height>= 687/687){
     if(image.width>687){  
     imgd.width=687;
     imgd.height=(image.height*687)/image.width;
     }else{
     imgd.width=image.width;  
     imgd.height=image.height;
     }
     imgd.alt=image.width+"×"+image.height;
     }
    else{
     if(image.height>687){  
     imgd.height=687;
     imgd.width=(image.width*687)/image.height;     
     }else{
     imgd.width=image.width;  
     imgd.height=image.height;
     }
     imgd.alt=image.width+"×"+image.height;
     }
    }
    /*else{
    imgd.src="";
    imgd.alt=""
    }*/
   } 

function filechange(value){
flag=false;
document.all.uploadimage.width=687;
document.all.uploadimage.height=687;
document.all.uploadimage.alt="";
document.all.uploadimage.src=value;
}