function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		home_over = newImage("/images/nav_home_over.png");
		about_over = newImage("/images/nav_about_over.png");
		residential_over = newImage("/images/nav_residential_over.png");
		commercial_over = newImage("/images/nav_commercial_over.png");
		customer_over = newImage("/images/nav_customer_over.png");
		contact_over = newImage("/images/nav_contact_over.png");
		preloadFlag = true;
	}
}

function fixFlash(){
theObjects = document.getElementsByTagName("object"); 
for (var i = 0; i < theObjects.length; i++) { 
theObjects[i].outerHTML = theObjects[i].outerHTML;
}
}

// functions to make png graphics with transparent show up properly in IE 5.5 to 6.*
var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])

function fixPNG(){
	for(i=0; i<document.images.length; i++){
		type = document.images[i].src;
		type = type.substring(type.length-3, type.length);
		if(type == "png"){
			if ((version >= 5.5) && (version < 7) && (document.body.filters)){
				document.images[i].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + document.images[i].src + "', sizingMethod='scale')"
				document.images[i].src = "/images/dotblank.gif"
			}
		}
	}
	
}
function changePNG(img, replace){
	if ((version >= 5.5) && (version < 7) && (document.body.filters)){
		document[img].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + replace + "', sizingMethod='scale')";
	} else {
		document[img].src = replace;
	}
}

function checkFields(){
		if (document.error.firstname.value == ""){
			alert("Your First Name is required");
			return false;
	}	
		if (document.error.lastname.value == ""){
			alert("Your Last Name is required");
			return false;
	}
		if (document.error.textfield4.value == ""){
			alert("Your street is required");
			return false;
	}
		if (document.error.textfield5.value == ""){
			alert("Your city is required");
			return false;
	}
		if (document.error.textfield6.value == ""){
			alert("Your state is required");
			return false;
	}
		if (document.error.textfield7.value == ""){
			alert("Your zip code is required");
			return false;
	}
		if (document.error.textfield8.value == ""){
			alert("Your country is required");
			return false;
	}
}