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<link id="system_style" type="text/css" href="global.css" rel="stylesheet"/>
<div id="myArticle" style="left:10px;top:35px;" >
ÔÚglobal.cssÖÐÉùÃ÷ÁË
#myArticle{width:400px; height:300px;}
ÕâÑùµÄÇé¿öÏ£¬Ö±½Óͨ¹ýJS½øÐÐgetElementById(’myArticle’).style.widthÊÇÎÞ·¨»ñÈ¡400pxµÄÖµµÄ£¬ÒòΪÕâ¸öÊýÖµ¶¨ÒåÔÚCSSÀËùÒÔ£¬±ØÐëÒªÓÃÆäËû·½·¨£¬ÎÒдÁËÒÔϺ¯Êý£º
/**
     * function for get the style value in special css file
     * @param int css_file_id
     * @param String labname
     * @param String param
     */
    function getStyleValue(css_file_id,labname,param)
    {
        var tar;
        var rss;
        var style;
        var value;
       
        tar = document.styleSheets[css_file_id];
 
        rss = tar.cssRules?tar.cssRules:tar.rules
       
        for(i=0;i<rss.length;i++)
        {
            style = rss[i];
            if(style.selectorText.toLowerCase() == labname.toLowerCase())
            {
                value = style.style[param];
            }
        }
        return


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