■スクリプト
<HTML> <HEAD> <TITLE>Sample</TITLE> </HEAD> <BODY bgColor="white"> <CENTER> <H1>横幅を返します</H1> </CENTER> <LAYER top="60" clip="10,10,256,192" width="256" NAME="MZ" bgColor="gray"> <BR><BR> <TABLE BORDER="1"> <SCRIPT Language="JavaScript"> <!-- document.write("<TR><TD> 横幅</TD><TD>",window.document.layers["MZ"].clip.width,"</TD></TR>"); // --> </SCRIPT> </TABLE> </LAYER> </BODY></HTML>