var myDiameter;
var myLengthRec;
var myWidthRec;

var myV1;
var myV2;
var myV3;

function HowManyTrapazoid(form)
{
	var amountTrap = 0;
	amountTrap = (((myV1 * 1) + myV3 * 1) +  myV2 * 2)/12 ;
	amountTrap = Math.ceil(amountTrap);
	form.feetTrap.value = amountTrap;
}

function HowManyRectangle(form)
{
	var amount;
	amount = (((myLengthRec * 2) + (myWidthRec *2))/12);
	amount = Math.ceil(amount);
	form.Recdiff.value = amount;
}


function HowManyCircle(form)
{
	var difference;
	difference = (myDiameter * 3.141592) / 12;
	difference = Math.ceil(difference);
	form.Fdiff.value = difference;
}

function SetMyDiameter(diameter)
{
	myDiameter = diameter.value;
}

function SetMyLengthRec(lengthRec)
{
	myLengthRec = lengthRec.value;
}

function SetMyWidthRec(widthRec)
{
	myWidthRec = widthRec.value;
}

function SetMyV1(v1)
{
	myV1 = v1.value;
}

function SetMyV2(v2)
{
	myV2 = v2.value;
}

function SetMyV3(v3)
{
	myV3 = v3.value;
}

/*function ClearForm(form){
	form.myDiameter.value = "";
	form.Fdiff.value = "";
}*/