<!-- hide from old browsers

function ClearFormlbs (form) {
form.weight.value="";
form.height.value="";
form.inches.value="";
form.yourbmi.value="";
form.my_comment.value="";
}


function BmiFormlbs(form) {

// Holds whether or not the form is correct
var Correct = true;

// Check for missing fields
	if (form.weight.value == null || form.weight.value.length == 0 || form.height.value == null || form.height.value.length == 0 || form.inches.value == null || form.inches.value.length == 0) {
	alert ("\nPlease fill in all of the form elements");
	Correct = false;
	}

// Check that only numbers are in the weight and height fields
	else {

// Holds the floats representing the weight and height
	var TestWeight;
	var Testheight;
	var Testinches;

// Parse the weight and height values and put in the variables
	TestWeight = parseFloat(form.weight.value);
	Testheight = parseFloat(form.height.value);
	Testinches = parseFloat(form.inches.value);

// Check to see that TestWeight is a number
		if (isNaN (TestWeight)) {
		alert("\nMake sure to enter the weight\nas a number.");
		Correct = false;
		form.weight.value="";
		}

// Check to see that Testheight is a number
		if (isNaN (Testheight)) {
		alert("\nMake sure to enter the feet \nas a number.");
		Correct = false;
		form.height.value="";
		}

// Check to see that Testinches is a number
		if (isNaN (Testinches)) {
		alert("\nMake sure to enter the inches \nas a number.");
		Correct = false;
		form.inches.value="";
		}

// Check that the TestWeight is greater than 0
		if (TestWeight <= 0) {
		alert("\nCome on.  Enter a real weight.");
		Correct = false;
		form.weight.value="";
		}

// Check that the Testheight is greater than 0
		if (Testheight <= 0) {
		alert("\nCome on.  Enter a real number of feet.");
		Correct = false;
		form.height.value="";
		}

// Check that the Testinches is greater than 0
		if (Testinches < 0) {
		alert("\nCome on.  Enter a real number of inches.");
		Correct = false;
		form.inches.value="";
		}

// Check that the Testinches is less than 12
		if (Testinches >= 12) {
		alert("\nCome on.  Enter a real number of inches.");
		Correct = false;
		form.inches.value="";
		}

	}

// If the inputs are correct, calculate the bmi
	if (Correct) {

// Hold the calculation numbers
	var Wt;
	var Height2;
	var Centis;
	Centis = (((Testheight * 12) + Testinches) * 2.54);
	Height2 = (Centis / 100) * (Centis / 100);
	Wt = TestWeight / 2.2;
	yourbmi = (Math.round(Wt / Height2));

// Send this number to the screen

	form.yourbmi.value = yourbmi;

		if (yourbmi >40) {
		form.my_comment.value="You are dangerously obese, consult your physician!";
		}

		else if (yourbmi >30 && yourbmi <=40) {
		form.my_comment.value="You are obese! Consult a doctor or dietitian!";
		}

		else if (yourbmi >27 && yourbmi <=30) {
		form.my_comment.value="Corpulent - do something before it's too late!";
		}

		else if (yourbmi >23 && yourbmi <=27) {
		form.my_comment.value="You are overweight! Diet and exercise required!";
		}

		else if (yourbmi >22 && yourbmi <=23) {
		form.my_comment.value="Hmm..Marginal! Watch your diet - more exercise needed!";
		}

		else if (yourbmi >=21 && yourbmi <=22) {
		form.my_comment.value="Perfect score!!  Good Job!!  Stay like you are!!";
		}

		else if (yourbmi >=18 && yourbmi <21) {
		form.my_comment.value="You are marginally thin, eat more.";
		}

		else if (yourbmi >=16 && yourbmi <18) {
		form.my_comment.value="You are emaciated. Consult your doctor or dietitian!";
		}

		else if (yourbmi <16) {
		form.my_comment.value="You are radically undernourished! Panic!";
		}

	}

}



function ClearForm (form) {
form.weight.value="";
form.height.value="";
form.yourbmi.value="";
form.my_comment.value="";
}


function BmiForm(form) {

// Holds whether or not the form is correct
var Correct = true;

// Check for missing fields
	if (form.weight.value == null || form.weight.value.length == 0 || form.height.value == null || form.height.value.length == 0) {
	alert ("\nPlease fill in all of the form elements");
	Correct = false;
	}

// Check that only numbers are in the weight and height fields
	else {

// Holds the floats representing the weight and height
	var TestWeight;
	var Testheight;

// Parse the weight and height values and put in the variables
	TestWeight = parseFloat(form.weight.value);
	Testheight = parseFloat(form.height.value);

// Check to see that TestWeight is a number
		if (isNaN (TestWeight)) {
		alert("\nMake sure to enter the weight\nas a number.");
		Correct = false;
		form.weight.value="";
		}

// Check to see that Testheight is a number
		if (isNaN (Testheight)) {
		alert("\nMake sure to enter the height \nas a number.");
		Correct = false;
		form.height.value="";
		}

// Check that the TestWeight is greater than 0
		if (TestWeight <= 0) {
		alert("\nCome on.  Enter a real weight.");
		Correct = false;
		form.weight.value="";	
		}

// Check that the Testheight is greater than 0
		if (Testheight <= 0) {
		alert("\nCome on.  Enter a real height size.");
		Correct = false;
		form.height.value="";	
		}

	}



// If the inputs are correct, calculate the bmi

	if (Correct) {

// Hold the calculation numbers
	var Wt;
	var Height2;
	Height2 = (Testheight/100) * (Testheight/100);
	Wt = TestWeight;
	yourbmi = (Math.round(Wt / Height2));

// Send this number to the screen
form.yourbmi.value = yourbmi;

		if (yourbmi >40) {
		form.my_comment.value="You are dangerously obese, consult your physician!";
		}

		else if (yourbmi >30 && yourbmi <=40) {
		form.my_comment.value="You are obese! Consult a doctor or dietitian!";
		}

		else if (yourbmi >27 && yourbmi <=30) {
		form.my_comment.value="Corpulent - do something before it's too late!";
		}

		else if (yourbmi >23 && yourbmi <=27) {
		form.my_comment.value="You are overweight! Diet and exercise required!";
		}

		else if (yourbmi >22 && yourbmi <=23) {
		form.my_comment.value="Hmm..Marginal! Watch your diet - more exercise needed!";
		}

		else if (yourbmi >=21 && yourbmi <=22) {
		form.my_comment.value="Perfect score!! Good Job!! Stay like you are!!";
		}

		else if (yourbmi >=18 && yourbmi <21) {
		form.my_comment.value="You are marginally thin, eat more.";
		}

		else if (yourbmi >=16 && yourbmi <18) {
		form.my_comment.value="You are emaciated. Consult a dietitian or doctor!";
		}

		else if (yourbmi <16) {
		form.my_comment.value="You are radically undernourished! Panic!";
		}

	}

}

// finish hiding from old browsers -->