<!--: hide JavaScript from old browsers

var bigFootIDc = 0;
var BestDeckSitec = 0;
var bestdecksitec = 0;
var Bestdecksitec = 0;
var bEstdecksitec = 0;
var beStdecksitec = 0;
var besTdecksitec = 0;
var bestDecksitec = 0;
var bestdEcksitec = 0;
var bestdeCksitec = 0;
var bestdecKsitec = 0;
var bestdeckSitec = 0;
var bestdecksItec = 0;
var bestdecksiTec = 0;
var bestdecksitEc = 0;
var BEstdecksitec = 0;


function findVolumec() {
	
	with (window.document.concreteFormc) {
		
		bEStdecksitec = (parseFloat(cyl_dFeet.value) + (parseFloat(cyl_dInches.value) / 12)) / 2;
		bestdeckSitec = parseFloat(cyl_hFeet.value) + (parseFloat(cyl_hInches.value) / 12);
		bestc = parseFloat(cyl_wFeet.value) + (parseFloat(cyl_wInches.value) / 12);
		
		Bestdecksitec = (bestc* bestdeckSitec * Math.PI * (Math.pow(bEStdecksitec ,2))) * parseFloat(numEachCyl.value);
		beStdecksitec = parseFloat(bigFootIDc.options[window.document.concreteFormc.bigFootIDc.selectedIndex].value);
	
		bestdecksitEc = (Math.round((Bestdecksitec + besTdecksitec + bEstdecksitec) * 100)) / 100;
		BEstdecksitec = Math.round(((Bestdecksitec + besTdecksitec + bEstdecksitec) / 27) * 100) / 100;
		
		if (dataCheckc() == 1) {		
			cubicFeetc.value = bestdecksitEc;
			cubicYardsc.value = BEstdecksitec;
			bags60c.value = (Math.ceil(beStdecksitec * bestdecksitEc));
			
		}
		
	}	
}
		

function dataCheckc() {
  with (window.document.concreteFormc) {

  BestDeckSitec = 1; 

  if (BEstdecksitec > 1000000 ) {
	alert("Results are too large to display.");
	cubicFeetc.value = 0;
	cubicYardsc.value = 0;
	bags60c.value = 0;
	
	BestDeckSitec = 0;
	}

 
  if ((Bestdecksitec == 0 & numEachCyl.value !=0) || (Bestdecksitec == 0 & (bEStdecksitec != 0 || bestdeckSitec != 0))) {
	alert("Please check the cylindrical footing values.\nYou've forgotten to enter in dimensions or the number of footings.");
	BestDeckSitec = 0;
	}

 
  return (BestDeckSitec);
  }
}


function clearAllc() {
 with (window.document.concreteFormc) {
 	
 	cyl_dFeet.value = 0;
 	cyl_dInches.value = 0;
 	cyl_hFeet.value = 0;
 	cyl_hInches.value = 0;
 	
	bigFootIDc.selectedIndex = 0;
	numEachCyl.value = 0;
	cubicFeetc.value = 0;
	cubicYardsc.value = 0;
	bags60c.value = 0;
	
	}
}


function clearBoxc(boxObject) {
	boxObject.value = "";
}


function inputCheckc(boxObject) {


	if (boxObject.value != "") {  
	
		if ((boxObject.value != Math.floor(boxObject.value)) || ((Math.floor(boxObject.value)) < 0)) {
		alert('Lengths must be positive integers like 1,2,3....');
		boxObject.value = 0;
		}
	}
	else boxObject.value = 0;
}


function denyChangec() {

	alert("The value in this box may not be changed.");
}


// end hiding JavaScript -->