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removeNewLines(target){var re=/[\n\r]/gi;return target.replace(re,"");};function checkAll(selector,uncheck,imageSelector){if(!imageSelector){imageSelector="#selectAllImage";}if(uncheck){$(selector).attr('checked',false);$(imageSelector).attr("src","images/unchecked.png").unbind().click(function(){checkAll(selector,false,imageSelector);});}else{$(selector).attr('checked',true);$(imageSelector).attr("src","images/checked.png").unbind().click(function(){checkAll(selector,true,imageSelector);});}};function toAlphabeticPermutation(num,useCapitalLetters){var alphabet=['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'];if(useCapitalLetters){alphabet=['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];}var modNum=num%alphabet.length;var permutation="";permutation=permutation+alphabet[modNum];var divNum=Math.round((num/alphabet.length)-0.5);if(divNum>0){if(divNum>alphabet.length){permutation=toAlphabeticPermutation(divNum-1,useCapitalLetters)+permutation;}else{permutation=alphabet[divNum-1]+permutation;}}return permutation;};function validateMathematicalFormula(formula){if(!formula.replace(/[a-zA-Z0-9,\.\(\)\+\-\/\*\s\:]+/g,"").length>0)return false;var i=0;var parenCounter=0;while(i<formula.length){if(formula.charAt(i)=="(")parenCounter++;if(formula.charAt(i)==")")parenCounter--;if(parenCounter<0)return false;}if(parenCounter>0)return false;return true;}