function addFavourite() {
	var urlAddress = "http://www.drivebrite.com/default.asp";
 	var pageName = "Driveway cleaning";
	
	var browserName = navigator.appName;
	
	if (browserName == "Microsoft Internet Explorer") { 
		if (window.external) { 
			window.external.AddFavorite(urlAddress,pageName) 
		} 
		else { 
			alert("Sorry! Your browser doesn't support this function."); 
		} 
	}
	

	if (window.sidebar) {
		window.sidebar.addPanel(pageName, urlAddress, "");
	}
	


} 


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 preloadImages() {
    if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "http://www.drivebrite.com/images/DB_Logo.gif";
      image_url[1] = "http://www.drivebrite.com/images/banner2.gif";
      image_url[2] = "http://www.drivebrite.com/images/tabrow3.gif";
      image_url[3] = "http://www.drivebrite.com/images/rowtab_red_sml.gif";
      image_url[4] = "http://www.drivebrite.com/images/rowtab_grey_sml.gif"; 
      image_url[5] = "http://www.drivebrite.com/images/background1.gif";
      image_url[6] = "http://www.drivebrite.com/images/jback_small.gif";
      image_url[7] = "http://www.drivebrite.com/images/back-mains.gif";
      image_url[8] = "http://www.drivebrite.com/images/flyer2.gif";

       var i = 0;
       for(i=0; i<=8; i++) 
	 //alert(image_url[i])
         preload_image_object.src = image_url[i];
    }

  
}

function clearQuote() {
			document.getElementById("quote").innerHTML = "&pound;0.00";	
			
		}
		
function getQuote() {	
		
	document.getElementById("quote").innerHTML = "calculating";		
	var iWidth = document.getElementById("areawidth").value;
	var ilength = document.getElementById("arealength").value;
	var iArea;
	var AreaCode;
	var fungalCode;
	var iQuote = 0;
	iArea = iWidth * ilength;
	
	if (iArea == 0 || iArea == "") {
		alert("Please enter an amount to be calcuated.")
	}

	if (iArea <= 10) {
		AreaCode = 1
		fungalCode = 1
	}
	if (iArea > 10 && iArea <= 20) {
		AreaCode = 2
		fungalCode = 1
	}

	if (iArea > 20 && iArea <= 30) {
		AreaCode = 3
		fungalCode = 1
	}
		
	if (iArea > 30 && iArea <= 40) {
		AreaCode = 4
		fungalCode = 1
	}

	if (iArea > 40 && iArea <= 50) {
		AreaCode = 5
		fungalCode = 1
	}

	if (iArea > 50 && iArea <= 60) {
		AreaCode = 6
		fungalCode = 6
	}

	if (iArea > 60 && iArea <= 70) {
		AreaCode = 7
		fungalCode = 6
	}

	if (iArea > 70 && iArea <= 80) {
		AreaCode = 8
		fungalCode = 8
	}

	if (iArea > 80 && iArea <= 90) {
		AreaCode = 9
		fungalCode = 8
	}

	if (iArea > 90 && iArea <= 100) {
		AreaCode = 10
		fungalCode = 8
	}

	if (iArea > 100) {
		AreaCode = 11
		fungalCode = 11
	}
			
	if (document.getElementById("radSurface").checked == true) {
		var iAmount = document.getElementById(AreaCode + "_sc").innerHTML;							
		iQuote = iArea * (iAmount*1);				
	} 
			
	if (document.getElementById("radFungal").checked == true) {				
		var iAmount = document.getElementById(fungalCode + "_fw").innerHTML;							
		iQuote += (iAmount*1);				
	} 

	if (document.getElementById("radsand").checked == true) {
		var iAmount = document.getElementById(AreaCode + "_rs").innerHTML;							
		iQuote += iArea * (iAmount*1);				
	} 

	if (document.getElementById("radseal").checked == true) {
		var iAmount = document.getElementById(AreaCode + "_st").innerHTML;							
		iQuote += iArea * (iAmount*1);				
	} 
			
	if (iQuote == 0) {
		document.getElementById("quote").innerHTML = "";
		alert("Please select at least one service.");
		
		return false;
	}
		
	//if (iArea >= 100 && document.getElementById("radFungal").checked == true) {
	//	document.getElementById("quote").innerHTML = "";
	//	alert("Unfortunately we are unable to provide the fungicidal treatment for areas over 100 square meters.");
	//	
	//	return false;
	//}
	
	iQuote = iQuote.toFixed(2)
	document.getElementById("quote").innerHTML = "&pound;" + iQuote;
			
}