/************************* brodit wizard ***************************/

//ajax opens object depending on support
function GetXmlHttpObject()
		{
		if (window.XMLHttpRequest)
		  {
		  // code for IE7+, Firefox, Chrome, Opera, Safari
		  return new XMLHttpRequest();
		  }
		if (window.ActiveXObject)
		  {
		  // code for IE6, IE5
		  return new ActiveXObject("Microsoft.XMLHTTP");
		  }
		return null;
	}

//ajax calls url to populate drop down and requests the loading graphic 
//until readystate=4 when it calls f_populateSelect to actual fill the dropdown
function f_loadSelect(strURL, strSelectTarget, strSelectSource, strSelectSource2) {
		xmlhttp=GetXmlHttpObject();
		if (xmlhttp!=null)
		  {
			var url=strURL;
			url=url+"?q="+document.getElementById('select'+strSelectSource).options[document.getElementById('select'+strSelectSource).selectedIndex].value;
			//alert(strSelectSource2);
			if (strSelectSource2 != '') {
				url=url+"&q2="+document.getElementById('select'+strSelectSource2).options[document.getElementById('select'+strSelectSource2).selectedIndex].value;
			}
			url=url+"&r="+Math.random();
			xmlhttp.onreadystatechange = function() {
				if (xmlhttp.readyState == 4) {
					//if the request has completed then call the javascript that populates the drop down
					f_populateSelect(xmlhttp.responseText, strSelectTarget);
				} else {
					f_loadingSelect(strSelectTarget);
				}
			}
			xmlhttp.open("GET",url,true);
			xmlhttp.send(null);
		  }		
	}

//physically fills the drop down
//hides the loading graphic and shows the dropdown div
function f_populateSelect(strResponseText, strSelectTarget) {
			
		var objSelectTarget = document.getElementById('select'+strSelectTarget);
		//clear
		objSelectTarget.options.length = 1;         
		// we get back Focus;C-max;Escort etc.
		var arrItems = strResponseText.split(";");        
		var count = arrItems.length - 1;        
		for (var i=0;i<count;i++){            
			objSelectTarget.options[i+1] = new Option(arrItems[i],arrItems[i]);       
		}
		
		var objDivTarget = document.getElementById('div'+strSelectTarget+'_Loading');
		objDivTarget.style.display="none";

		var objDivTarget = document.getElementById('div'+strSelectTarget+'_Select');
		objDivTarget.style.display="block";		

	}

//hides the drop down div and shows the loading graphic div
function f_loadingSelect(strSelectTarget) {

		var objDivTarget = document.getElementById('div'+strSelectTarget+'_Select');
		objDivTarget.style.display="none";

		var objDivTarget = document.getElementById('div'+strSelectTarget+'_Loading');
		objDivTarget.style.display="block";

	}

//jumps to the results page when the last option is chosen
function f_goToResults(strURL, strSelectModel, strSelectMake) {

			var url=strURL;			
			url=url+""+document.getElementById('select'+strSelectMake).options[document.getElementById('select'+strSelectMake).selectedIndex].value;			
			url=url+"/"+encodeURIComponent(document.getElementById('select'+strSelectModel).options[document.getElementById('select'+strSelectModel).selectedIndex].value)+".htm";			
			this.location.href=url
	}

//jumps to the results page when the last option is chosen
function f_goToResults3(strURL, strSelectModel, strSelectMake, strSelectYear) {

			var url=strURL;			
			url=url+""+document.getElementById('select'+strSelectMake).options[document.getElementById('select'+strSelectMake).selectedIndex].value;
			url=url+"/"+encodeURIComponent(document.getElementById('select'+strSelectModel).options[document.getElementById('select'+strSelectModel).selectedIndex].value);
			url=url+"/"+encodeURIComponent(document.getElementById('select'+strSelectYear).options[document.getElementById('select'+strSelectYear).selectedIndex].value)+".htm";
			this.location.href=url
	}






/************************* missing images ***************************/

/*brodit doesn't always have the images. This should replace the red crosses with an holding image*/
function f_checkBrokenImagesIntro () {
		
		//uses the getElementsByClassName function below
		 var arrBroditImgs = getElementsByClassName("imgBroditIntro", "img")

			for (i = 0, len = arrBroditImgs.length; i < len; ++i) {		
				//create a new image object
				var oImg=new Image; 
				oImgInPage = arrBroditImgs[i];
				if (!oImgInPage.complete) {
					oImgInPage.src="/images/brodit_noimage180.gif";
					document.getElementById('zoom'+oImgInPage.id).style.display="none";
				} else if (typeof oImgInPage.naturalWidth != "undefined" && oImgInPage.naturalWidth == 0) {
					oImgInPage.src="/images/brodit_noimage180.gif";
					document.getElementById('zoom'+oImgInPage.id).style.display="none";
				}
			}
		
}

function f_checkBrokenImagesMain () {
		//uses the getElementsByClassName function below
		  var arrBroditImgs1 = getElementsByClassName("imgBroditMain", "img")

			for (i = 0, len = arrBroditImgs1.length; i < len; ++i) {	
				//create a new image object
				var oImg=new Image; 
				oImgInPage = arrBroditImgs1[i];
				if (!oImgInPage.complete) {
					oImgInPage.src="/images/brodit_noimage300.gif";
					document.getElementById('zoom'+oImgInPage.id).style.display="none";
				} else if (typeof oImgInPage.naturalWidth != "undefined" && oImgInPage.naturalWidth == 0) {
					oImgInPage.src="/images/brodit_noimage300.gif";
					document.getElementById('zoom'+oImgInPage.id).style.display="none";
				}
				/* This method doesn't work in FF as you only ever get the last image dealt with.
				oImg.onerror=function(){
					alert(i);
						oImgInPage.src="/images/brodit_noimage300.gif";
						}; 
				//now fire the above by setting the src of our virtual image object to the src of the image in the page.
				oImg.src=oImgInPage.src;*/
			}
		
}
function f_checkBrokenImagesInstructions () {
		
		//uses the getElementsByClassName function below
		  var arrBroditImgs2 = getElementsByClassName("imgBroditInstructions", "img")

			for (i = 0, len = arrBroditImgs2.length; i < len; ++i) {		
				//create a new image object
				var oImg=new Image; 
				oImgInPage = arrBroditImgs2[i];
				if (!oImgInPage.complete) {
					oImgInPage.src="/images/spacer.gif";
					oImgInPage.height=1;
				} else if (typeof oImgInPage.naturalWidth != "undefined" && oImgInPage.naturalWidth == 0) {
					oImgInPage.src="/images/spacer.gif";
					oImgInPage.height=1;
				}
			}		
}




/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/	
var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};


function queryclear() {
     var objInput = document.getElementById('query-input');
	 if (objInput.value == 'Search our website...') {
         objInput.value = "";
     }
 }