// JavaScript Document

function checkform()
{
if (document.commute.miles.value == "")
   {
   alert('Please Enter The Number of Miles You Drive To Work or Class.');
   commute.miles.focus();
   return false;    
   }
   else if (document.commute.days.value == "")
   {
   alert('Please Enter the Number of Days You Drive To Work or Class.');
   commute.days.focus();
   return false;
   }
   else if (document.commute.mpg.value == "")
   {
   alert('Please Enter How Many Miles Per Gallon Your Vehicle Averages.  Please Refer To Resource #3 Near The Bottom of This Page if You Are Unsure of Your Vehicles Average Miles Per Gallon');
   commute.mpg.focus();
   return false;
   }
   else if (document.commute.gas.value == "")
   {
   alert('Please Enter The Average Price You Pay For Gas/Fuel.  Please Refer To Resource #4 Near The Bottom of This Page If You Are Unsure of Current Gas Price Averages.');
   commute.gas.focus()
   return false;
   }
   return true; 
}

function roundNumber() {
	var numberFielda = document.commute.calcday; 
	var numberFieldb = document.commute.calcmonth;
	var numberFieldc = document.commute.calcyear;
	var numberFieldd = document.commute.oilchange;
	var numberFielde = document.commute.regcost; 
	var numberFieldf = document.commute.tax; 
	var numberFieldg = document.commute.other; 
	var numberFieldh = document.commute.perday; 
	var numberFieldi = document.commute.permonth; 
	var numberFieldj = document.commute.peryear;
	var rnuma = numberFielda.value;
	var rnumb = numberFieldb.value;
	var rnumc = numberFieldc.value;
	var rnumd = numberFieldd.value;
	var rnume = numberFielde.value;
	var rnumf = numberFieldf.value;
	var rnumg = numberFieldg.value;
	var rnumh = numberFieldh.value;
	var rnumi = numberFieldi.value;
	var rnumj = numberFieldj.value;
	var rlength = 2; 
	if (rnuma > 8191 && rnuma < 10485) {
		rnuma = rnuma-5000;
		var newnumbera = Math.round(rnuma*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumbera = newnumbera+5000;
	} else {
		var newnumbera = Math.round(rnuma*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFielda.value = newnumbera;

if (rnumb > 8191 && rnumb < 10485) {
		rnumb = rnumb-5000;
		var newnumberb = Math.round(rnumb*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberb = newnumberb+5000;
	} else {
		var newnumberb = Math.round(rnumb*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFieldb.value = newnumberb;

if (rnumc > 8191 && rnumc < 10485) {
		rnumc = rnumc-5000;
		var newnumberc = Math.round(rnumc*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberc = newnumberc+5000;
	} else {
		var newnumberc = Math.round(rnumc*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFieldc.value = newnumberc;

if (rnumd > 8191 && rnumd < 10485) {
		rnumd = rnumd-5000;
		var newnumberd = Math.round(rnumd*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberd = newnumberd+5000;
	} else {
		var newnumberd = Math.round(rnumd*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFieldd.value = newnumberd;

if (rnume > 8191 && rnume < 10485) {
		rnume = rnume-5000;
		var newnumbere = Math.round(rnume*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumbere = newnumbere+5000;
	} else {
		var newnumbere = Math.round(rnume*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFielde.value = newnumbere;

if (rnumf > 8191 && rnumf < 10485) {
		rnumf = rnumf-5000;
		var newnumberf = Math.round(rnumf*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberf = newnumberf+5000;
	} else {
		var newnumberf = Math.round(rnumf*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFieldf.value = newnumberf;

if (rnumg > 8191 && rnumg < 10485) {
		rnumg = rnumg-5000;
		var newnumberg = Math.round(rnumg*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberg = newnumberg+5000;
	} else {
		var newnumberg = Math.round(rnumg*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFieldg.value = newnumberg;

if (rnumh > 8191 && rnumh < 10485) {
		rnumh = rnumh-5000;
		var newnumberh = Math.round(rnumh*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberh = newnumberh+5000;
	} else {
		var newnumberh = Math.round(rnumh*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFieldh.value = newnumberh;

if (rnumi > 8191 && rnumi < 10485) {
		rnumi = rnumi-5000;
		var newnumberi = Math.round(rnumi*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberi = newnumberi+5000;
	} else {
		var newnumberi = Math.round(rnumi*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
	numberFieldi.value = newnumberi;

if (rnumj > 8191 && rnumj < 10485) {
		rnumj = rnumj-5000;
		var newnumberj = Math.round(rnumj*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumberj = newnumberj+5000;
	} else {
		var newnumberj = Math.round(rnumj*Math.pow(10,rlength))/Math.pow(10,rlength);
	}
    numberFieldj.value = newnumberj;
}