?

<! DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.0?Transitional//EN" >
< HTML >
< HEAD >
< TITLE > ?New?Document? </ TITLE >
< META? NAME ="Generator" ?CONTENT ="EditPlus" >
< META? NAME ="Author" ?CONTENT ="" >
< META? NAME ="Keywords" ?CONTENT ="" >
< META? NAME ="Description" ?CONTENT ="" >
</ HEAD >

< BODY >
< form? name ="fr" ?action ="up.asp" ?method ="post" ?enctype ="multipart/form-data" ?onsubmit ="return?chk()" > ?
 < input? type ="file" ?name ="file" ?id ="file" ?size ="30" ?UNSELECTABLE ="on" > ?
 < input? type ="submit" ?name ="submit" ?value ="上傳" > ?
 < script? language ="javascript" > ?
 function ?chk()?
 {?
 var ?s = fr.file.value;?

 if (fr.file.value == "" )?
 {?
alert( " 請輸入圖片地址! " );?
fr.file.focus();?
 return ? false ;?
} ?
s = s.substr(s.lastIndexOf( " . " ) + 1 , 3 );?
 if (s != " gif " && s != " jpg " )?
 {?
alert( " 請選擇正確的圖片格式! " )?
 return ? false ;?
} ?

 var ???img??? = ??? new ???Image();?
 var ?FileMaxSize? = ? 10 ; // 限制上傳的文件大小，單位(k)

?img.src??? = ?fr.file.value;?
 if (img.fileSize > FileMaxSize * 1024 ) {
alert( " 請上傳小于100K的圖片 " );

fr.file.focus();
 return ? false ;?

}
}
</ script > ?
 </ BODY >
</ HTML >