function init() {
//showDebug();
Get("age").focus();
}
//Cross-browser cross-frame element retrieval
function Get( oName, oFrame, oDoc ) {
if( !oDoc ) { if( oFrame ) { oDoc = oFrame.document; } else { oDoc = window.document; } }
if( oDoc[oName] ) { return oDoc[oName]; } if( oDoc.all && oDoc.all[oName] ) { return oDoc.all[oName]; }
if( oDoc.getElementById && oDoc.getElementById(oName) ) { return oDoc.getElementById(oName); }
for( var x = 0; x < oDoc.forms.length; x++ ) { if( oDoc.forms[x][oName] ) { return oDoc.forms[x][oName]; } }
for( var x = 0; x < oDoc.anchors.length; x++ ) { if( oDoc.anchors[x].name == oName ) { return oDoc.anchors[x]; } }
for( var x = 0; document.layers && x < oDoc.layers.length; x++ ) {
var theOb = Get( oName, null, oDoc.layers[x].document ); if( theOb ) { return theOb; } }
if( !oFrame && window[oName] ) { return window[oName]; } if( oFrame && oFrame[oName] ) { return oFrame[oName]; }
for( var x = 0; oFrame && oFrame.frames && x < oFrame.frames.length; x++ ) {
var theOb = Get( oName, oFrame.frames[x], oFrame.frames[x].document ); if( theOb ) { return theOb; } }
return null;
}
window.onload = init;
function printPage (elementPrint) {
var printDiv = Get(elementPrint);
if (document.getElementsByTagName) {
linkEl = document.getElementsByTagName('link');
styleEl= document.getElementsByTagName('style');
}
printWindow = window.open("","printWindow","left=50,top=50,width=400,height=400,scrollbars=yes,"+"status=yes,resizable=yes");
printWindow.opener = self;
d = printWindow.document;
//Write the printed contents
d.open();
d.writeln("" + document.title + "");
if (linkEl) {
d.writeln ("");
d.writeln ("");
}
d.writeln("");
d.writeln(printDiv.innerHTML);
d.writeln("
Calculated at www.freedieting.com/tools/calorie_calculator.htm");
d.writeln("");
d.close();
printWindow.print();
printWindow.close();
}
function showHide(block) {
//var result = document.getElementById("zigResults");
if (block.className == "displayNone") {
block.className = "displayBlock";
isVis = true;
} else {
block.className = "displayNone";
isVis = false;
}
return true;
}
function toggleMe(trigger, div) {
showHide(document.getElementById(div));
linkImages = trigger.getElementsByTagName('IMG');
zipImg = linkImages[0];
if (isVis) {
zipImg.src = "../images/widget_triangle_open.gif";
} else {
zipImg.src = "../images/widget_triangle.gif";
}
}
function isNumeric(num, fieldPrompt, fieldName) {
var regTest=/(^\d+$)|(^\d+\.\d+$)/
if (regTest.test(num))
return true;
else {
if (fieldPrompt) {
alert(fieldPrompt + " Must be a valid number");
Get(fieldName).focus();
Get(fieldName).select();
}
return false;
}
}
function calcIt() {
oForm = document.calc;
weight = parseInt(oForm.weight.value*1);
age = parseInt(oForm.age.value*1);
feet = parseInt(oForm.feet.value*1);
inches = parseInt(oForm.inches.value*1);
var bfPer = parseInt(oForm.txtBF.value*1);
if (!isNumeric(age,"Age:","age"))
return false;
else if ( (age <= 12) || (age > 80)) {
alert ("Age must be between 13 and 80");
return false;
}
if (!isNumeric(weight,"Weight:","weight"))
return false;
else if ( (weight <= 40) || (weight > 500) ) {
alert ("Please enter a valid weight");
return false;
}
if (!isNumeric(feet,"Feet:","feet"))
return false;
else if ( (feet < 4) || (feet > 7) ) {
alert ("Height must be between 4 and 7 feet");
return false;
}
if (!isNumeric(inches,"Inches:","inches"))
return false;
else if (inches > 11) {
alert ("Inches should be less than 12");
return false;
}
if (!isNumeric(bfPer,"Body Fat %","txtBF"))
return false;
if (oForm.weighttype[0].checked)
weight = weight/2.2;
height = ((feet*12) + inches) * 2.54;
if (oForm.optFormula[2].checked) {
//Harris Benedict
if (oForm.sex[0].checked) {
result = 66.5 + (13.75 * weight) + (5.003 * height) - (6.775 * age); //Men
} else {
result = 655.1 + (9.563 * weight) + (1.850 * height) - (4.676 * age); //Women
}
} else {
if (oForm.optFormula[1].checked) {
var leanMass = weight - (weight * (bfPer / 100));
//result = 21.6 * weight + 370; //Katch Mcardle
//result = 500 + (22 * weight); /?
result = 19.7 * leanMass + 413;
} else {
//Mifflin St-Jeor
if (oForm.sex[0].checked)
result = 5 + (10 * weight) + (6.25 * height) - (5 * age);
else
result = -161 + (10*weight) + (6.25 * height) - (5 * age);
}
}
var maintain = result * oForm.activity.options[oForm.activity.selectedIndex].value;
var isBMR = false;
if (oForm.activity.options[oForm.activity.selectedIndex].value == 1)
isBMR = true;
rockBottom = (weight*2.2)*8;
var suffix = " Calories/day";
//kJ conversion
if (!oForm.optResults[0].checked) {
maintain = maintain * 4.184;
rockBottom = rockBottom * 4.184;
suffix = " kilojoules/day";
} else {
var linkNut = Get("linkNutrient").href;
if (linkNut.indexOf("?") != -1)
linkNut = linkNut.substring(0,linkNut.indexOf("?"));
linkNut += "?cals=" + Math.round(maintain);
Get("linkNutrient").href = linkNut;
Get("linkNutrient2").href = linkNut;
}
s = Math.round(maintain) + suffix;
Get("answer").innerHTML = s;
loseFat = maintain - (maintain*0.20)
if (loseFat < rockBottom && rockBottom <= maintain)
loseFat = rockBottom;
s = Math.round(loseFat) + suffix;
Get("lose").innerHTML = s;
var extLoseFat = maintain - (maintain*0.40)
if (extLoseFat < rockBottom && rockBottom <= maintain)
extLoseFat = rockBottom;
s = Math.round(extLoseFat) + suffix;
Get("loseExt").innerHTML = s;
var gain = maintain + (maintain*0.20)
s = Math.round(gain) + suffix;
//Get("gain").innerHTML = s;
if (isBMR) {
Get("loseExt").innerHTML = "-";
Get("lose").innerHTML = "-";
}
//try walking the DOM
var zigzag = new Array(1,0.8,1.2,1,0.9,1.1,1);
var tbl =document.getElementById('zigResultsTable');
var sZig;
for (r = 1; r < tbl.rows.length; ++r) {
thisRow = tbl.rows[r];
for (c = 1; c < thisRow.cells.length; ++c) {
if (c==1)
sZig = extLoseFat * zigzag[r-1];
if (c==2)
sZig = loseFat * zigzag[r-1];
if (c==3)
sZig = maintain * zigzag[r-1];
if (c==4)
sZig = gain * zigzag[r-1];
if (sZig < rockBottom)
sZig = rockBottom
thisRow.cells[c].innerHTML = Math.ceil(sZig);
if (isBMR)
thisRow.cells[c].innerHTML = "-";
}
}
return true;
}
// End -->