// JavaScript Document
/* Javascript-Date-Code Reference: http://www.w3schools.com/jsref/jsref_obj_date.asp
 * <script language="Javascript" type="text/javascript"> document.write(thedate.getFullYear()); </script>
 */
var stampdays = new Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
var stampmonths = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
var thedate = new Date();

function preloader(){
	// counter
    var i = 0;
	 
    // create object
    imageObj = new Image();

    // set image list
    images = new Array();
    images[0]="images/logo.png"
    images[1]="images/andyblack-realtor.png"
    images[2]="images/grain.png"
    images[3]="images/body-bg.jpg"
	 
    // start preloading
    for(i=0; i<=3; i++) {
        imageObj.src=images[i];
    }
}

// Mortgage Calculator
    function checkForZero(field) {
			if (field.value == 0 || field.value.length == 0) {
					alert ("This field can't be 0!");
					field.focus(); }
			else
					calculatePayment(field.form);
    }//end function
	
    function cmdCalc_Click(form) {
			if (form.price.value == 0 || form.price.value.length == 0) {
					alert ("The Price field can't be 0!");
					form.price.focus(); }
			else if (form.ir.value == 0 || form.ir.value.length == 0) {
					alert ("The Interest Rate field can't be 0!");
					form.ir.focus(); }
			else if (form.term.value == 0 || form.term.value.length == 0) {
					alert ("The Term field can not be 0!");
					form.term.focus(); }
			else
					calculatePayment(form);
    }//end function
	
	function calculatePayment(form) {
			princ = form.price.value - form.dp.value;
			intRate = (form.ir.value/100) / 12;
			months = form.term.value * 12;
			//form.pmt.value = Math.floor((princ*intRate)/(1-Math.pow(1+intRate,(-1*months)))*100)/100;
			monthly_pt  = Math.floor ( (form.pt.value/12)*100)/100;
			monthly_ins = Math.floor( (form.ins.value/12)*100)/100;
			monthly_extra = (monthly_pt + monthly_ins);
			//alert(monthly_pt);
			//alert(monthly_ins);
			//alert(monthly_extra);
			principle_interest = Math.floor((princ*intRate)/(1-Math.pow(1+intRate,(-1*months)))*100)/100;
      
			form.pmt.value = (principle_interest + monthly_extra);
			form.principle.value = princ;
			form.payments.value = months;
    }//end function
//end Mortgage Calculator

// Show-Hide-Divs
function toggleLayer(whichLayer) {
  var elem, vis;
  if(document.getElementById) // this is the way the standards work
    elem = document.getElementById(whichLayer);
  else if(document.all) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if(document.layers) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}
function showonlyone(thechosenone) {
      var newboxes = document.getElementsByTagName("div");
            for(var x=0; x<newboxes.length; x++) {
                  name = newboxes[x].getAttribute("name");
                  if (name == 'newboxes') {
                        if (newboxes[x].id == thechosenone) {
                        newboxes[x].style.display = 'block';
                  }
                  else {
                        newboxes[x].style.display = 'none';
                  }
            }
      }
}
//end Show-Hide-Divs

// Set Active Class
function scriptInit() {
if (!document.getElementById) {
	return;
	}
}
function addEvent(elm, evType, fn, useCapture) {
	if (elm.addEventListener) {
	elm.addEventListener(evType, fn, useCapture);
	return true;
	} else if (elm.attachEvent) {
	var r = elm.attachEvent('on' + evType, fn);
	return r;
	} else {
	elm['on' + evType] = fn;
	}
}
function checkActive() {
	var a = document.getElementsByTagName("a");
	if (window.location.href.substr(location.href.length - 1, 1) == '/') {
		var loc = window.location.href + 'index.html'; 
	}
	else {
		var loc = window.location.href;
	}
	for(var i=0; i < a.length; i++) {
		if (a[i].href == loc) {
			a[i].setAttribute("class", "active");
			a[i].setAttribute("className", "active");
		}
	}
}
addEvent(window, 'load', checkActive, false);
// End Set Active Class