Exponential Notation

" + "CPI 1972 " + currentMonth + " = " + cpi["1972"][currentMonth] + "

" ); // Show in decimal notation. document.write( "

Decimal Notation

" + "CPI 1972 " + currentMonth + " = " + cpi["1972"][currentMonth].value + "

" ); */ /* showData is now deprecated... - The year range validation will take place in validation functions (creating year1 & year2) - cpi2=resultTo will be calculated like this: var cpi2 = cpi[year2][currentMonth]; // IE. cpi["1945"].apr - cpi1=resultFrom will be calculated like this: var cpi1 = cpi[year1][currentMonth]; // IE. cpi["1936"].apr function showData(form) { i = "" yearTo = parseInt(form.enterto.value) if (yearTo <= 1913) {alert('Year must be 1914 or later'); i = "0"} else if (yearTo >= 2006) {alert('Please enter a date in the range 1914-2005.'); i = "0"} else if (form.enterto.value == "1914") {i = "1"} else if (form.enterto.value == "1915") ... else if (form.enterto.value == "2005") {i = "92"}; resultTo = year[i].dec // NEW on November 4 1999 // Routine to show month and CPI numbers displayMonth = " " if (resultTo == year[i].dec) {displayMonth = "Dec"} // End new section yearFrom = parseInt(form.enterfrom.value) if (yearFrom <= 1913) {alert('Year must be 1914 or later'); i = "0"} else if (yearFrom >= 2006) {alert('Please enter a date in the range 1914-2005.'); i = "0"} else if (form.enterfrom.value == "1914") {i = "1"} else if (form.enterfrom.value == "1915") ... else if (form.enterfrom.value == "2005") {i = "92"}; resultFrom = year[i].dec } ... End of deprecated showData */ // Validate the start & end years. var year1 = ""; // Init year1 function year1_validate (y1Str) { /* * y1Str is now an object ref instead of a string. */ // check that the supplied string converts to an integer // and firstYear <= y1Str <= lastYear var test = parseInt(y1Str.value); // local if ( isNaN(test) || !( firstYear <= test && test <= lastYear) ) { alert("You entered '"+y1Str.value+ "'\nPlease enter a year in the range "+ firstYear+"-"+lastYear + "\n\n" + "L'ann\351e que vous avez indiqu\351e est : "+y1Str.value+ "\nVeuillez indiquer une ann\351e comprise entre "+firstYear+" et "+lastYear); return false; } else { // Change the passed object's value y1Str.value = test.toString(); year1 = new String(test.toString()); year1.asAnumber = test; // A property containing the numeric value return true; } } var year2 = new String(); // Init year2 function year2_validate (y2Str) { /* * y2Str is now an object ref instead of a string. */ // check that the supplied string converts to an integer // and firstYear <= y2Str <= lastYear var test = parseInt(y2Str.value); // local if ( isNaN(test) || !( firstYear <= test && test <= lastYear) ) { alert("You entered '"+y2Str.value+ "'\nPlease enter a year in the range "+ firstYear+"-"+lastYear + "\n\n" + "L'ann\351e que vous avez indiqu\351e est : "+y2Str.value+ "\nVeuillez indiquer une ann\351e comprise entre "+firstYear+" et "+lastYear); return false; } else { //alert("test = " + test ); //alert("test as a string = " + test.toString ); // year2 = y2Str; //alert("year2 as a string = " + year2); // year2 = y2Str turns year2 from a String object into a String value! /* * Q: What if y2Str is entered as "2002.01.01"? (A Maureen test value) * * A: In our existing code, we have, "year2 = new String(y2Str);" * so we'd get year2 = "2002.01.01" & year2.asAnumber = 2000 * * We don't get an alert from here when the "calculate" button is pushed * but the calculation is not done (?!)... trace this through. * * Aha... year2 is used as a property of our CPI object, like this: * var cpi2 = cpi[year2][currentMonth].value; * If year2 = "2002.01.01" this would look like: * var cpi2 = cpi["2002.01.01"][currentMonth].value; * and there is no "2002.01.01" property of 'cpi'. * * If 'test' is a number then year2 (and the 'enterto' form field?) * shold be set to the string value of 'test'. */ // Change the passed object's value y2Str.value = test.toString(); //year2 = new String(y2Str); //alert("year2 as a string = " + year2); year2 = new String(test.toString()); //alert("year2 as a string = " + year2); year2.asAnumber = test; // A property containing the numeric value // alert("year2 as a number = " + year2.asAnumber); return true; } } var dollarsThen = ""; function setDollarAmount(dtStr) { // Strip out extraneous commas and spaces // Assume (because of field validation) that the supplied string converts to an float. if ( language == "F" ) { // We allow zero/one comma (as a decimal separator) // Replace the last comma with a decimal point. dtStr = dtStr.replace(/,([^,]*)$/, ".$1"); //alert("dtStr = " + dtStr); // other commas and any spaces (thousands separators) will be ignored below } var test = parseFloat(dtStr.replace(/[, ]/g,"")); // local //alert("dollarAmount_validate: test = "+test); /* if ( isNaN(test) ) { alert("dollarAmount_validate: You entered '"+dtStr+"' which is not a number. Please enter a number."+"\n\n"+ "Le montant que vous avez indiqu\351 ("+dtStr+") n'est pas un chiffre. Veuillez entrer un chiffre."); return false; } else { */ dollarsThen = test; dollarsThen.asAstring = dtStr; // A property containing the original string //alert("dollarAmount_validate: dollarsThen = "+dollarsThen); // return true; // } } function calcInflation(form) { // Set the dollarsThen variable from the form object... setDollarAmount(document.inflation.dollarAmount.value); var cpi1 = cpi[year1][currentMonth].value; // Start CPI = yearValueFrom = resultFrom var cpi2 = cpi[year2][currentMonth].value; // End CPI = yearValueTo = resultTo var dollarsNow = new Datum(dollarsThen * (cpi2/cpi1)); var perCentage = new Datum((dollarsNow.value - dollarsThen) / dollarsThen * 100); form.result2.value = formatNumber(dollarsNow); // Automagically converted to a string? form.result3.value = formatNumber(perCentage); // Automagically converted to a string? var yearSpan = year2.asAnumber - year1.asAnumber; form.result4.value = parseInt(yearSpan); // set variables for APC calculation // logB = resultFrom = cpi1 // logA = resultTo = cpi2 // C = yearTo = year2.asAnumber |(C-D) = yearTo-yearFrom = yearSpan.value // D = yearFrom = year1.asAnumber | // //calcAPC = 100 * Math.exp(((Math.log(logA) - (Math.log(logB))) / (Math.abs(C - D)))) - 100 var calcAPC = new Datum( 100 * Math.exp( (Math.log(cpi2) - Math.log(cpi1)) / Math.abs(yearSpan) ) - 100 ); form.result5.value = formatNumber(calcAPC); /** * The "currentMonth" needs to be language-specific * * 22 Sep 2006 * The toString() method for the CPI numbers returns 2 decimal palces... * but we want to display CPI values with a single decimal place. * * So, we turn the number into a String and throw away the last character * (since CPI numbers _are_ to one decimal place in the first place, * we are always just throwing away a '0' chatacter). */ var result6_2Decimals = new String(cpi[year2][currentMonth]); form.result6.value = "\(" + mthByLang(currentMonth) + " " + year2 + "\) " + " " + formatNumber(result6_2Decimals.slice(0,-1)); // form.result6.value = "\(" + mthByLang(currentMonth) + " " + year2 + "\) " + " " + formatNumber(cpi[year2][currentMonth].slice(0,-1)); var result7_2Decimals = new String(cpi[year1][currentMonth]); form.result7.value = "\(" + mthByLang(currentMonth) + " " + year1 + "\) " + " " + formatNumber(result7_2Decimals.slice(0,-1)); // form.result7.value = "\(" + mthByLang(currentMonth) + " " + year1 + "\) " + " " + formatNumber(cpi[year1][currentMonth].slice(0,-1)); //alert("dollarsThen = " + dollarsThen); var da = new Datum(dollarsThen); form.dollarAmount.value = formatNumber(da); } /* * Use a simple function to return the value of the selected language radio button * Usage: languageSelection(document.inflation.language) */ function languageSelectionByRadio(radioButtonArrayRef) { /* * this function is passed a reference to a radio button array. */ var rbar = radioButtonArrayRef; // Copy the array ref into a shorter name! for ( var i = 0; i < rbar.length; i++ ) { //alert("rbar[i] = "+rbar[i].value); if ( rbar[i].checked ) { break; // Use i to index the checked button. } } language = rbar[i].value; return true; } function languageSelectionByText(textRef) { /* * this function is passed a reference to a form's hidden input object. */ language = textRef.value; return true; } function defaultLanguageByRadio(radioButtonArrayRef) { /* * This function sets the default language setting to whatever the checked value of * the passed radio buttons is at the time of the call; if English is currently * checked then we set the default to "E" (if French then "F") * -- Call this carefully... perhaps when the page is loaded (and we'll save the * initial state of the radio buttons). */ var rbar = radioButtonArrayRef; // Copy the array ref into a shorter name! for ( var i = 0; i < rbar.length; i++ ) { //alert("rbar[i] = "+rbar[i].value); if ( rbar[i].checked ) { break; // Use i to index the checked button. } } defaultLanguage = rbar[i].value; return true; } function defaultLanguageByText(textRef) { /* * This function sets the default language setting to whatever the value of * the passed form input object is at the time of the call; if English is the value * then we set the default to "E" (if French then "F") * -- Call this carefully... perhaps when the page is loaded (and we'll save the * initial state of the radio buttons). */ defaultLanguage = textRef.value; return true; } function setLanguageToDefault() { language=defaultLanguage; return true; } /* * We need to get the month in a language-specific style... * * Here are some maps for English & French... * * The fame-generated JS code uses lower case English 3-letter forms for the months (IE "aug"); * We can make them nicer. */ var CPImonth = new Object; //cpiDisplayMonths = new mthHTMLCalendar(); //alert("cpiDisplayMonths['apr'] = "+cpiDisplayMonths["apr"]); // prototype for the "cpiDisplayMonths" class. function mthHTMLCalendar() { var mthLang = new Object; var mthFame = [ "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec" ]; if ( language == "F" ) { mthLang = [ "jan", "f\351v", "mar", "avr", "mai", "jun", "jul", "ao\373", "sep", "oct", "nov", "d\351c" ]; } else if ( language == "E" ) { mthLang = [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]; } //alert("mthLang"+mthLang); for ( var m = 0 ; m < mthFame.length; m++ ) { this[mthFame[m]] = mthLang[m]; //alert("mthHTMLCalendar:mthFame[m] = " + mthFame[m] + " / " + mthLang[m]); } } function mthByLang(mth) { /* * We plug 'language' and 'mth' into the CPImonth object as properties * and return the string value. */ //alert("mthByLang:mth = "+mth); return cpiDisplayMonths[mth]; } //-->