Properti HTMLObjectElement.useMap menetapkan atau mengembalikan atribut USEMAP elemen OBJECT HTML.
Sintaks:
objectObj.useMap = value
objectObj.useMap
value adalah DOMString yang berisi nilai atribut NAME elemen MAP dan diawali tanda '#'.
Contoh di bawah ini mengembalikan nilai atribut USEMAP:
<OBJECT DATA="image.jpg" TYPE="image/jpg" WIDTH="300" HEIGHT="200" USEMAP="#mymap">
<MAP NAME="mymap">
<AREA HREF="A.html" SHAPE="rect" COORDS="5,5,95,195">
<AREA HREF="B.html" SHAPE="rect" COORDS="105,5,195,195">
<AREA HREF="C.html" SHAPE="rect" COORDS="205,5,295,195">
</MAP>
</OBJECT>
<SCRIPT TYPE="text/javascript">
var objectObj = document.getElementsByTagName("object")[0];
alert(objectObj.useMap); // "#mymap"
</SCRIPT>
Contoh di bawah ini menetapkan atribut USEMAP:
<OBJECT DATA="image.jpg" TYPE="image/jpg" WIDTH="300" HEIGHT="200">
<MAP NAME="mymap">
<AREA HREF="A.html" SHAPE="rect" COORDS="5,5,95,195">
<AREA HREF="B.html" SHAPE="rect" COORDS="105,5,195,195">
<AREA HREF="C.html" SHAPE="rect" COORDS="205,5,295,195">
</MAP>
</OBJECT>
<SCRIPT TYPE="text/javascript">
var objectObj = document.getElementsByTagName("object")[0];
objectObj.useMap = "#mymap";
</SCRIPT>
Elemen OBJECT di atas akan menjadi:
<OBJECT DATA="image.jpg" TYPE="image/jpg" WIDTH="300" HEIGHT="200" USEMAP="#mymap">
<MAP NAME="mymap">
<AREA HREF="A.html" SHAPE="rect" COORDS="5,5,95,195">
<AREA HREF="B.html" SHAPE="rect" COORDS="105,5,195,195">
<AREA HREF="C.html" SHAPE="rect" COORDS="205,5,295,195">
</MAP>
</OBJECT>
