<form name="frm"> <INPUT TYPE="file" NAME="atteche"> <INPUT TYPE="button" VALUE="Size View" ONCLICK="sizeCheck()"> </form> <script> function getFileSize( atteche_file ){ var len = 0; var img = new Image(); img.dynsrc = atteche_file; len = img.fileSize; return len; } function sizeCheck(){ var len = getFileSize( document.frm.atteche.value ); alert( Math.round( len/102..