//***************************************************************************** // Name: adv2calc.js // // IMPORTANT: // is.js is essential to the operation of some of the functions in // this file. is.js must be included in html if this file is to be // used. // // Description: // The JavaScript file that runs the second advanced energy // calculator. This file must be included for the calculator to // work. // // Author: Kevin Mueller mule@thinice.com // // Initials Date Description // ---------------------------------------------------------------------------- // KRM 15-may-2001 Initial programming and design // KRM 31-may-2001 Changing way activities list is displayed // //***************************************************************************** var resultCalculated = 0; // Global set to 1 if result has been calculated and 0 if not var sortingArray = new Array(); // Global array containing activity numbers sorted by category into subarrays var showCatListArray = new Array(); // Global array containing binary values showing which categories are open and wich ones are collapsed. // Function to drop all but the first decimal place. // Use only when displaying a result. function dropDecimalPlaces(theNumber){ var theString, decimalIndex theString = theNumber.toString(); decimalIndex = theString.indexOf('.'); if (decimalIndex != -1){ theString = theString.slice(0, decimalIndex+2); return theString; }else{ return theString; } } /* Old activity list display function // Function to draw whole activities list var advActivitiesString = ""; // String containing the whole activities list page. Must be global to be sent to browser. function advDrawActivities(calcNum){ var sortingArray, n, x; // Creating a sub-array in sortingArray for each category that will just contain actObj properties (eg, num1010) sortingArray = new Array(); for (n = 0; n < categories.length; n++){ sortingArray[n] = new Array(); } // Stuffing the sortingArray array for (activity in actObj){ subArrayIdx = actObj[activity].category sortingArray[subArrayIdx][sortingArray[subArrayIdx].length] = activity; } // Top of the page advActivitiesString = "

Activies

"; // Writing the page to the advActivitiesString variable for displaying for (n = 0; n < sortingArray.length; n++){ advActivitiesString += ""; for (x = 0; x < sortingArray[n].length; x++){ advActivitiesString += ""; } } advActivitiesString = advActivitiesString + "

" + categories[n] + ":
-	" + actObj[sortingArray[n][x]].examples + "

"; // Displaying the list frame parent.frames['activitiesframe'].location.replace("javascript:parent.frames[0].advActivitiesString"); } */ // Function to stuff the sortingArray and the showCatListArray function stuffSortingArray(){ // Creating a sub-array in sortingArray for each category that will just contain actObj properties (eg, num1010) sortingArray = new Array(); for (var n = 0; n < categories.length; n++){ sortingArray[n] = new Array(); showCatListArray[n] = 0; // All categories will start collapsed } // Stuffing the sortingArray array for (activity in actObj){ subArrayIdx = actObj[activity].category sortingArray[subArrayIdx][sortingArray[subArrayIdx].length] = activity; } newDrawActivities(); } // Function to expand a category list function expandCat(catNum){ showCatListArray[catNum] = 1; newDrawActivities(); } // Function to collapse a category list function collapseCat(catNum){ showCatListArray[catNum] = 0; newDrawActivities(); } // Function to show the new collapsable activities list function newDrawActivities(){ // Top of the page advActivitiesString = "

Activies

"; // Writing the page to the advActivitiesString variable for displaying for (var n = 0; n < sortingArray.length; n++){ if (showCatListArray[n] == 0){ // If this categories list is supposed to be closed then this line is displayed advActivitiesString += "\n"; }else{ // If this categories list is open, then this line is displayed as is the list of activities advActivitiesString += ""; for (var x = 0; x < sortingArray[n].length; x++){ advActivitiesString += ""; } } } // Bottom of the page advActivitiesString = advActivitiesString + "

+ " + categories[n] + "
- " + categories[n] + "
-	" + actObj[sortingArray[n][x]].examples + "

"; // Displaying the list frame parent.frames['activitiesframe'].location.replace("javascript:parent.frames[0].advActivitiesString"); } // Function to display stuff in the first and second advanced calculator function adv1Display(text, layerId){ var lyr; // the whole layer path for old NS browsers if (is_nav3 || is_nav4){ // For older Netscapes lyr = parent.frames['resultframe'].document.layers["ns" + layerId + "bs"].document.layers["ns" + layerId].document; lyr.open(); lyr.write(text); lyr.close(); }else if (is_nav6up || is_ie5up){ // For standards compliant browsers parent.frames['resultframe'].document.getElementById(layerId).innerHTML = text; }else{ // For old IEs parent.frames['resultframe'].document.all[layerId].innerHTML = text; } if (layerId == "result"){ // If time was just calculated resultCalculated = 1; } } // Function to reshow the calculate button/link function clearResult(){ if (!resultCalculated) return; if (is_nav3 || is_nav4){ // For older Netscapes adv1Display("Calculate Energy", 'result'); }else{ // For other browsers adv1Display(" ", 'result'); } resultCalculated = 0; } // Function to display selected activity for the first and second advanced calculator // Recieves the activity's actObj property name function adv1SelectActivity(actProp){ var activityText; activityText = "" + actObj[actProp].examples + ""; adv1Display(activityText, 'activity'); parent.frames['resultframe'].document.form1.activity.value = actProp; clearResult(); } // Function to solve for energy function adv2Calculate(){ var activity, weight, weight_units, time, met, totalEnergy, resultString // First we get all of the values from the form activity = parent.frames['resultframe'].document.form1.activity.value; weight = parent.frames['resultframe'].document.form1.weight.value; if (parent.frames['resultframe'].document.form1.weight_units[0].checked){ weight_units = parent.frames['resultframe'].document.form1.weight_units[0].value; }else if (parent.frames['resultframe'].document.form1.weight_units[1].checked){ weight_units = parent.frames['resultframe'].document.form1.weight_units[1].value; } time = parent.frames['resultframe'].document.form1.time.value; // Then we make sure the important ones are all filled in. If not, we alert the user. if (activity == ""){ alert("You need to select an activity."); return; } if (weight == ""){ alert("You need to enter your weight (be honest)."); return; }else if(weight_units == 'lbs'){ weight = weight / 2.2; } if (time == ""){ alert("You need to enter how much time you spent."); return; }else{ time = time / 60; } // Now we go for the calculation to get total energy in kilocalories met = actObj[activity].met; totalCalories = met * weight * time; totalCalories = dropDecimalPlaces(totalCalories); // Dispaly the result resultString = "" + totalCalories + " kcal" adv1Display(resultString, 'result'); }