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352
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1 function get_css(rule_name, stylesheet, delete_flag) {
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2 if (!document.styleSheets) return false;
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3 rule_name = rule_name.toLowerCase(); stylesheet = stylesheet || 0;
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4 for (var i = stylesheet; i < document.styleSheets.length; i++) {
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5 var styleSheet = document.styleSheets[i]; css_rules = document.styleSheets[i].cssRules || document.styleSheets[i].rules;
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6 if(!css_rules) continue;
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7 var j = 0;
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8 do {
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9 if(css_rules[j].selectorText.toLowerCase() == rule_name) {
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10 if(delete_flag == true) {
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11 if(document.styleSheets[i].removeRule) document.styleSheets[i].removeRule(j);
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12 if(document.styleSheets[i].deleteRule) document.styleSheets[i].deleteRule(j);
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13 return true;
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14 }
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15 else return css_rules[j];
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16 }
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17 }
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18 while (css_rules[++j]);
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19 }
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20 return false;
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21 }
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22 function add_css(rule_name, stylesheet) {
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23 rule_name = rule_name.toLowerCase(); stylesheet = stylesheet || 0;
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24 if (!document.styleSheets || get_css(rule_name, stylesheet)) return false;
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25 (document.styleSheets[stylesheet].addRule) ? document.styleSheets[stylesheet].addRule(rule_name, null, 0) : document.styleSheets[stylesheet].insertRule(rule_name+' { }', 0);
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26 return get_css(rule_name);
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27 }
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28 function get_sheet_num (href_name) {
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29 if (!document.styleSheets) return false;
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30 for (var i = 0; i < document.styleSheets.length; i++) { if(document.styleSheets[i].href && document.styleSheets[i].href.toString().match(href_name)) return i; }
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31 return false;
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32 }
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33 function remove_css(rule_name, stylesheet) { return get_css(rule_name, stylesheet, true); }
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34
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35 function add_sheet(url, media) {
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36 if(document.createStyleSheet) {
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37 document.createStyleSheet(url);
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38 }
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39 else {
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40 var newSS = document.createElement('link');
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41 newSS.rel = 'stylesheet';
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42 newSS.type = 'text/css';
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43 newSS.media = media || "all";
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44
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45 newSS.href = url;
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46 // var styles = "@import url(' " + url + " ');";
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47 // newSS.href ='data:text/css,'+escape(styles);
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48 document.getElementsByTagName("head")[0].appendChild(newSS);
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49 }
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50 } |
