// JavaScript Document

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

//Calculator - Simple Rent

// Check for a valid entry in Annual Salary field

function checkNumber(salary){
	if ((salary== null) || (salary== "")) {
		alert("Please enter an annual salary > $14000. ");
		return false;}
	if (salary <= 14000) {
		alert("Please enter an annual salary > $14000. ");
		return false; }
	for (j = 0; j < salary.length; j++) {
	if	((salary.substring(j,j+1) != "0") &&
		 (salary.substring(j,j+1) != "1") &&
		 (salary.substring(j,j+1) != "2") &&
		 (salary.substring(j,j+1) != "3") &&
		 (salary.substring(j,j+1) != "4") &&
		 (salary.substring(j,j+1) != "5") &&
		 (salary.substring(j,j+1) != "6") &&
		 (salary.substring(j,j+1) != "7") &&
		 (salary.substring(j,j+1) != "8") &&
		 (salary.substring(j,j+1) != "9")) {
		alert("Only numeric values are permitted in the salary field. ");
		return false; }
	 }
	if (salary<= 14000) {
	alert("Please enter an annual salary > $14000. ");
	return false; }
return true;
}


function equation(gross){
	var salary= (gross.salary.value);
	var validEntry = true;
	var validEntry = checkNumber(salary);
	if (validEntry) {
		with (Math) {
			gross.low.value = round(eval(salary*.19/12));
			gross.high.value = round(eval(salary*.25/12)); }}}


// Reset the display variables

function clearForm(range)
{
gross.salary.value="0"
gross.low.value="0"
gross.high.value="0"
}