getElementsByClass = document.getElementsByClassName; // copy prototype func to match old lib.js function

function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=250,height=400,left = 770,top = 320');");
}

function printWindow(){
	browserVersion = parseInt(navigator.appVersion)
	if (browserVersion >= 4) window.print()
	else window.alert('Your browser does not support this feature');
}

function bookmark(bookmarkurl,bookmarktitle){
	if (document.all){
		window.external.AddFavorite(bookmarkurl,bookmarktitle);
	}else{
		window.alert('Netscape browsers do not support this feature. Pressing Ctrl + D will bookmark this page.');
	}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

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];}
}

function matchHeight(){
	var divs,contDivs,maxHeight,divHeight,d;
	// get all <div> elements in the document
	divs=document.getElementsByTagName('div');
	contDivs=[];
	// initialize maximum height value
	maxHeight=0;
	// iterate over all <div> elements in the document
	for(var i=0;i<divs.length;i++){
		// make collection with <div> elements with class attribute 'matchedheight'
		if(/\bmatchedheight\b/.test(divs[i].className)){
			d=divs[i];
			contDivs[contDivs.length]=d;
			// determine height for <div> element
			if(d.offsetHeight){
				divHeight=d.offsetHeight;
			}else if(d.style.pixelHeight){
				divHeight=d.style.pixelHeight;
			}
			// calculate maximum height
			maxHeight=Math.max(maxHeight,divHeight);
		}
	}
	if(!maxHeight || maxHeight < 20) maxHeight = 20;
	//alert(contDivs.length+' : '+maxHeight);
	// assign maximum height value to all of container <div> elements
	for(var i=0;i<contDivs.length;i++){
		contDivs[i].style.height=maxHeight+'px';
	}
}

function matchHeightByClass(classid){
	var divs,contDivs,maxHeight,divHeight,d,newh;
	contDivs=[];
	// initialize maximum height value
	maxHeight=0;
	// iterate over all <div> elements in the document
	var divs = getElementsByClass(classid);
	if(divs.length > 1){
		for (var i=0; i < divs.length; i++) {
			var d=divs[i];
			contDivs[contDivs.length]=d; // copy object to contDivs
			// determine height for <div> element
			if(d.offsetHeight){
				divHeight=d.offsetHeight;
			}else if(d.style.pixelHeight){
				divHeight=d.style.pixelHeight;
			}
			// calculate maximum height
			maxHeight=Math.max(maxHeight,divHeight);
		}//end for
		if(!maxHeight || maxHeight < 20) maxHeight = 20;
		// assign maximum height value to all of container <div> elements
		for(var i=0;i<contDivs.length;i++){
			newh = maxHeight - 32;//subtract padding
			contDivs[i].style.height=newh+'px';
		}//end for
	}//end if
}//end func

function doPopupImage() {
	if (!document.getElementsByTagName) return false;
	var links = document.getElementsByTagName("a");
	for (var i=0; i < links.length; i++) {
		if (links[i].className.match("popupimage")) {
			links[i].onclick = function() {
				var w = this.getAttribute('w');
				var h = this.getAttribute('h');
				//alert('w='+w+' h='+h);
				window.open(this.href,'','toolbar=0,resizable=1,menubar=0,scrollbars=1,width='+w+',height='+h);
				return false;
			}//end func
		}//end if
	}//end if
}//end func

/***** WINDOW ONLOADER ****/
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

addLoadEvent(function() {
  /* more code to run on page load */ 
	init(); // AJAX stuff
	if(document.getElementsByTagName){
		matchHeightByClass('mhcolumns');
	}
	doPopupImage();
	if($('panelReturnJourney')){
		pnlRtnJrn = new fx.Combo('panelReturnJourney',{duration:400, onComplete: function(){
    			matchHeightByClass('mhcolumns');
  			}
		});
		var bReturnJourney = DWRUtil.getValue("returnJourney");
		if(bReturnJourney == 0) pnlRtnJrn.hide('height');
	}
});

function init(){
	DWRUtil.useLoadingMessage();
	DWREngine._errorHandler =  errorHandler;
	//set up all the select.linkedsel elements onchange event
	if (!document.getElementsByTagName) return false;
	var selects = document.getElementsByTagName("select");
	for (var i=0; i < selects.length; i++) {
		if (selects[i].id.match("vehicleId")) {
			//vehicle information panel changer
			selects[i].onchange = getVehicleData; //assign the on change
		}//end if
		if (selects[i].id.match("returnJourney")) {
			//show/hide return journey panel
			selects[i].onchange = toggleReturnJourneyPanel; //assign the on change
		}//end if
		if (selects[i].id.match("originId")) {
			//set destinationId options
			selects[i].onchange = getDestinations; //assign the on change
		}//end if
		if (selects[i].id.match("out_monthyear")) {
			//AJAX thing to set correct month day length
			selects[i].onchange = getMonthLength_out; //assign the on change
		}//end if
		if (selects[i].id.match("in_monthyear")) {
			//AJAX thing to set correct month day length
			selects[i].onchange = getMonthLength_in; //assign the on change
		}//end if
	}//end for

}//end func


function toggleReturnJourneyPanel(){
	var bReturnJourney = DWRUtil.getValue("returnJourney");
	var obj = document.getElementById("panelReturnJourney");
	if(obj){
		pnlRtnJrn.toggle('height');
		matchHeightByClass('mhcolumns');
	}//end if
}

function getDestinations(){
	var originId = DWRUtil.getValue("originId");
	DWREngine._execute(_cfscriptLocation, null, 'getDestinations', originId, setDestinations);
}//end func


function getMonthLength_out(){
	var sMonthYear = DWRUtil.getValue("out_monthyear");
	DWREngine._execute(_cfscriptLocation, null, 'getMonthLength', sMonthYear, setMonthLength_out);
}//end func
function setMonthLength_out(aReturn){
	//aReturn is an array
	if(DWRUtil._isArray(aReturn) && aReturn.length){
		var oSelect = $('out_day');
		var iCurrent = DWRUtil.getValue("out_day");
		DWRUtil.removeAllOptions(oSelect); // remove options from child
		DWRUtil.addOptions(oSelect, aReturn, "KEY", "VALUE"); // add new options to child			
		if(iCurrent <= aReturn.length) DWRUtil.setValue(oSelect, iCurrent);
	}//end if
}//end if

//these functions are the same as above except that they are targetted at a different select.
//It's just me being a bit lazy rather than passing some additional data regarding targetting.
function getMonthLength_in(){
	var sMonthYear = DWRUtil.getValue("in_monthyear");
	DWREngine._execute(_cfscriptLocation, null, 'getMonthLength', sMonthYear, setMonthLength_in);
}//end func
function setMonthLength_in(aReturn){
	//aReturn is an array
	if(DWRUtil._isArray(aReturn) && aReturn.length){
		var oSelect = $('in_day');
		var iCurrent = DWRUtil.getValue("in_day");
		DWRUtil.removeAllOptions(oSelect); // remove options from child
		DWRUtil.addOptions(oSelect, aReturn, "KEY", "VALUE"); // add new options to child			
		if(iCurrent <= aReturn.length) DWRUtil.setValue(oSelect, iCurrent);
		else DWRUtil.setValue(oSelect, aReturn.length);
	}//end if
}//end if


function setDestinations(aReturn){
	//aReturn is an array
	if(DWRUtil._isArray(aReturn) && aReturn.length){
		var oDependant = document.getElementById('destinationId');
		DWRUtil.removeAllOptions(oDependant); // remove options from child
		DWRUtil.addOptions(oDependant, aReturn, "KEY", "VALUE"); // add new options to child			
		//oDependant.onchange();
		DWRUtil.setValue(oDependant, oDependant.getAttribute('defaultValue')); // set selected value based on child.defaultValue (got from database earlier)
	}//end if
}

function getVehicleData(){
	var vehicleId = DWRUtil.getValue("vehicleId");
	DWREngine._execute(_cfscriptLocation, null, 'getVehicleData', vehicleId, setVehicleResult);
}

function setVehicleResult(result){
	$("vehicleInfo").innerHTML = result;
	matchHeightByClass('mhcolumns');
}

function chk_agree(){
	if( $("checkbox_agree").checked == true ) {
		return true;
	}
	alert('Please confirm that you have read the terms and conditions that apply before making this booking.');
	return false;
	}