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HTML DOM tabIndex属性
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Definition and Usage
定义与用法
The tabIndex property sets or returns the tab order for an area in an image-map.
tabindex属性可设置或返回热点图片中的tab顺序。
Syntax
语法
areaObject.tabIndex=tabIndex |
Example
举例
The following example shows the tab order of the areas in the image-map:
下面的举例将展示如何显示出热点图片area的tab顺序：
<html>
<head>
<script type="text/javascript">
function showTabIndex()
{
var sun=document.getElementById('sun').tabIndex;
var mercury=document.getElementById('mercury').tabIndex;
var venus=document.getElementById('venus').tabIndex; document.write("Tab index of Sun: " + sun);
document.write("<br />");
document.write("Tab index of Mercury: " + mercury);
document.write("<br />");
document.write("Tab index of Venus: " + venus);
}
</script>
</head>
<body> <img src ="planets.gif" width="145" height="126" alt="Planets" usemap ="#planetmap" /> <map name="planetmap"> <area shape ="rect" coords ="0,0,82,126" href ="sun.htm" id="sun" tabIndex="1" /> <area shape ="circle" coords ="90,58,3" href ="mercur.htm" id="mercury" tabIndex="2" /> <area shape ="circle" coords ="124,58,8" href ="venus.htm" id="venus" tabIndex="3" /> </map> <input type="button" onclick="showTabIndex()" value="Show tabIndex" /> </body> </html> |
演练
Return the tab orderof the areas in an image-map
返回热点地图中area的tab顺序
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