function getCSSRule(ruleName, deleteFlag){ruleName=ruleName.toLowerCase();;if(document.styleSheets){for(var i=0; i<document.styleSheets.length; i++){var styleSheet=document.styleSheets[i];var ii=0;var cssRule=false;;do{if(styleSheet.cssRules){cssRule=styleSheet.cssRules[ii];} else{cssRule=styleSheet.rules[ii]}if(cssRule){if(cssRule.selectorText.toLowerCase()==ruleName){if(deleteFlag=='delete'){if(styleSheet.cssRules){styleSheet.deleteRule(ii)} else{styleSheet.removeRule(ii)}return true;} else{return cssRule}}}ii++;} while(cssRule)}}return false}function addCSSRule(ruleName){if(document.styleSheets){if(!getCSSRule(ruleName)){if(document.styleSheets[0].addRule){document.styleSheets[0].addRule(ruleName, null,0)} else{document.styleSheets[0].insertRule(ruleName+'{}', 0);}}}return getCSSRule(ruleName);}addCSSRule('.noscript').style.display='none';