// GLOBAL VARIABLES ********************************************************************************************************
var intTimer=1000;  // DELAY FOR HOMEPAGE IMAGES
var intStartDelay=250;  // DELAY FOR HOMEPAGE IMAGES TO START ROTATING
var br="";
if(document.getElementById) br="DOM";
else if(document.all) br="IE";
else if(document.layers) br="NS";

// DREAMWEAVER FUNCTION ****************************************************************************************************
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}

// FORM FUNCTIONS **********************************************************************************************************
function getQueryVals() {
	var arrQueryKeys=new Array(), arrQueryVals=new Array();
	var arrReturn=new Array();
  // GET THE Key & VALUE PAIRS
	arrTempPairs=document.location.search.substring(1).split("&");
	for(var i=0;i<arrTempPairs.length;i++) {
	  // GET EACH KEY AND VALUE
		arrTempSep=arrTempPairs[i].split("=");
		if(arrTempSep.length==2) {
			arrQueryKeys[i]=arrTempSep[0];
			arrQueryVals[i]=arrTempSep[1]; } }
	for(var i=0;i<arrQueryKeys.length;i++) arrReturn[arrQueryKeys[i]]=arrQueryVals[i];
	return arrReturn;
}
function frmObjSetFocus(docFrmElem) {
	if(docFrmElem) {
		docFrmElem.focus();
		if(docFrmElem.type=="text" || docFrmElem.type=="textarea" || docFrmElem.type=="password") docFrmElem.select(); }
}
function validateEmail(docFrmElem, txtErrorMsg, blnOptional) {
	if(docFrmElem) {
		if(!docFrmElem.value && blnOptional) return true;
		if(!txtErrorMsg) txtErrorMsg="Error at form entry: '"+docFrmElem.name+"'";
		var regExp = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z])+$/;
		if(!regExp.test(docFrmElem.value)) {
			alert(txtErrorMsg);
			frmObjSetFocus(docFrmElem);
			return false; }
		return true; }
	else return false;
}
function validateString(docFrmElem, txtErrorMsg, intMin, intMax, blnOptional) {
	if(docFrmElem) {
		if(!docFrmElem.value && blnOptional) return true;
		if(!txtErrorMsg) txtErrorMsg="Error at form entry: '"+docFrmElem.name+"'";
		if(!intMin) intMin=1;
		if(!intMax) intMax=65535;
		if(!docFrmElem.value || docFrmElem.value.length<intMin || docFrmElem.value.length>intMax) {
			alert(txtErrorMsg);
			frmObjSetFocus(docFrmElem);
			return false; }
		return true; }
	else return false;
}
function validateContact(frmObj) {
	var blnPassed=false;
	if(frmObj) return (validateString(frmObj.frmName, "Please make sure you have entered your name.") && validateEmail(frmObj.frmEmail, "Please make sure you have entered a valid email address.") && validateString(frmObj.frmMessage, "Please make sure you have entered a message."));
	return false;
}

// IMAGE FUNCTIONS *********************************************************************************************************
var myNavImages=new Array, myNavSubImages=new Array, myNavNumImages=new Array;
var myOtherImages=new Array;
var myNavImagesPreOn=new Array, myNavImagesPreOff=new Array;
var myNavSubImagesPreOn=new Array, myNavSubImagesPreOff=new Array;
var myNavNumImagesPreOn=new Array, myNavNumImagesPreOff=new Array;
var myOtherImagesPre=new Array;
var intNavImagesPreOn=0, intNavImagesPreOff=0;
var intNavSubImagesPreOn=0, intNavSubImagesPreOff=0;
var intNavNumImagesPreOn=0, intNavNumImagesPreOff=0;
var intOtherImagesPre=0;
function preloadImg() {

  // UN-COMMENT THIS TO CHECK PRELOAD!
//	alert("NAV: "+intNavImagesPreOn+" & "+intNavImagesPreOff+"\nNAV-SUB: "+intNavSubImagesPreOn+" & "+intNavSubImagesPreOff+"\nNAV-NUM: "+intNavNumImagesPreOn+ " & "+intNavNumImagesPreOff+"\nOTHER: "+intOtherImagesPre);

	function incCountOn() { intNavImagesPreOn++; }
	function incCountOff() { intNavImagesPreOff++; }
	function incCountSubOn() { intNavSubImagesPreOn++; }
	function incCountSubOff() { intNavSubImagesPreOff++; }
	function incCountNumOn() { intNavNumImagesPreOn++; }
	function incCountNumOff() { intNavNumImagesPreOff++; }
	function incCountOther() { intOtherImagesPre++; }
	if(br!="") {
		var txtEvalOff=txtEvalSubOff=txtEvalNumOff="";
		var intStart=intNavImagesPreOn;
		for(var i=intStart;i<myNavImages.length;i++) {
		  // PRELOAD THE ROLLOVER IMAGES FIRST
			myNavImagesPreOn[i]=new Image();
			myNavImagesPreOn[i].onload=incCountOn;
			myNavImagesPreOn[i].src=(myNavImages[i]+"on.gif");
			txtEvalOff+="myNavImagesPreOff["+i+"]=new Image(); myNavImagesPreOff["+i+"].onload=incCountOff; myNavImagesPreOff["+i+"].src=\""+myNavImages[i]+"off.gif\"; "; }
		var intStart=intNavSubImagesPreOn;
		for(var i=intStart;i<myNavSubImages.length;i++) {
		  // PRELOAD THE ROLLOVER IMAGES FIRST
			myNavSubImagesPreOn[i]=new Image();
			myNavSubImagesPreOn[i].onload=incCountSubOn;
			myNavSubImagesPreOn[i].src=(myNavSubImages[i]+"on.gif");
			txtEvalSubOff+="myNavSubImagesPreOff["+i+"]=new Image(); myNavSubImagesPreOff["+i+"].onload=incCountSubOff; myNavSubImagesPreOff["+i+"].src=\""+myNavSubImages[i]+"off.gif\"; "; }
		intStart=intNavNumImagesPreOn;
		for(var i=intStart;i<myNavNumImages.length;i++) {
		  // PRELOAD THE ROLLOVER IMAGES FIRST
			myNavNumImagesPreOn[i]=new Image();
			myNavNumImagesPreOn[i].onload=incCountNumOn;
			myNavNumImagesPreOn[i].src=(myNavNumImages[i]+"on.gif");
			txtEvalNumOff+="myNavNumImagesPreOff["+i+"]=new Image(); myNavNumImagesPreOff["+i+"].onload=incCountNumOff; myNavNumImagesPreOff["+i+"].src=\""+myNavNumImages[i]+"off.jpg\"; "; }
		for(var i=intOtherImagesPre;i<myOtherImages.length;i++) {
			myOtherImagesPre[i]=new Image();
			myOtherImagesPre[i].src=(myOtherImages[i]);
			myOtherImagesPre[i].onload=incCountOther; }
		if(txtEvalOff!="") eval(txtEvalOff);
		if(txtEvalSubOff!="") eval(txtEvalSubOff);
		if(txtEvalNumOff!="") eval(txtEvalNumOff); }
}
function imgCheckPreload() {
  // MAKE SURE ALL IMAGES HAVE BEEN PRELOADED
  // THE PRELOAD FUNCTION CAN BE STOPPED BY A CALL TO ANOTHER FUNCTION, E.G. NAVIGATION ROLLOVER!
	if(intNavImagesPreOn!=myNavImages.length || intNavImagesPreOff!=myNavImages.length || intNavSubImagesPreOn!=myNavSubImages.length || intNavSubImagesPreOff!=myNavSubImages.length || intNavNumImagesPreOn!=myNavNumImages.length || intNavNumImagesPreOff!=myNavNumImages.length || intOtherImagesPre!=myOtherImages.length) preloadImg();
}
function imgSwap(imgName, imgSrc) {
	if(br!="") {
		if(document[imgName] && imgSrc) document[imgName].src=imgSrc;
		window.focus();
// COMMENTED-OUT TO SPEED-UP ROLLOVER
//		imgCheckPreload();
	}
}
var navSel=navSubSel=-1;
var navNumSel=navNumDupSel=0;
function imgNavigation(imgNumber, imgType, imgStatus) {
	var imgSelected=-1;
	var txtImgSrc=txtImgSrcSel="";
	var blnSelected=false;
	if((imgType=="nav" || imgType=="navSub" || imgType=="navNum" || imgType=="navNumDup") && (imgStatus=="off" || imgStatus=="on" || imgStatus=="sel") && !isNaN(parseInt(imgNumber))) {
		if(imgStatus=="sel") {
			blnSelected=true;
			imgStatus="on"; }
		if(imgType=="nav") {
			imgSelected=navSel;
			txtImgSrc=myNavImages[parseInt(imgNumber)];
			if(blnSelected) txtImgSrcSel=myNavImages[parseInt(imgSelected)]; }
		else if(imgType=="navSub") {
			imgSelected=navSubSel;
			txtImgSrc=myNavSubImages[parseInt(imgNumber)];
			if(blnSelected) txtImgSrcSel=myNavSubImages[parseInt(imgSelected)]; }
		else if(imgType=="navNum") {
			imgSelected=navNumSel;
			txtImgSrc=myNavNumImages[parseInt(imgNumber)];
			if(blnSelected) txtImgSrcSel=myNavNumImages[parseInt(imgSelected)]; }
		else if(imgType=="navNumDup") {
			imgSelected=navNumDupSel;
			txtImgSrc=myNavNumImages[parseInt(imgNumber)];
			if(blnSelected) txtImgSrcSel=myNavNumImages[parseInt(imgSelected)]; }
		if(imgNumber!=imgSelected) {
			document[imgType+imgNumber.toString()].src=txtImgSrc+imgStatus+".gif";
			if(blnSelected && txtImgSrcSel!="") {
				if(imgSelected!=-1) document[imgType+imgSelected.toString()].src=txtImgSrcSel+"off.gif";
				eval(imgType+"Sel=imgNumber;"); } } }
	imgCheckPreload();
}
function Banner(txtName) {
	this.txtName=txtName;
	this.arrImages=new Array();
	for(var i=0;i<arguments.length-1;i++) {
		this.arrImages[i]=arguments[i+1];
		if(i==1) {
		  // PRELOAD FIRST IMAGE
			var imgTemp=new Image();
			imgTemp.src=arguments[i+1]; } }
	this.intDisplayed=0;
	this.blnPreloaded=false;
}
function bannerStart() {
  // DONE LIKE THIS SO THEY ROTATE AT DIFFERENT TIMES
	bannerSwap(banner1);
	setTimeout("bannerSwap(banner4)", intStartDelay);
	setTimeout("bannerSwap(banner2)", (intStartDelay*2));
	setTimeout("bannerSwap(banner3)", (intStartDelay*3));
}
function bannerSwap(objName) {
	if(objName.arrImages.length>0) {
		if(objName.intDisplayed>=(objName.arrImages.length-1)) objName.intDisplayed=0;
		else objName.intDisplayed++;
		imgSwap(objName.txtName, objName.arrImages[objName.intDisplayed]);
		if(!objName.blnPreloaded) {
			var intTemp=((objName.intDisplayed>=(objName.arrImages.length-1))?0:(objName.intDisplayed++));
			if(intTemp==0) objName.blnPreloaded=true;
			else {
			  // PRELOAD NEXT IMAGE
				var imgTemp=new Image();
				imgTemp.src=objName.arrImages[intTemp]; } }
		setTimeout("bannerSwap("+objName.txtName+")", intTimer); }
}

// SUB NAVIGATION FUNCTION *************************************************************************************************
function layerSubNav(intNav, intNavSub) {
	if(br && !isNaN(parseInt(intNav)) && top.topFrameNav && intNavSub!=6) {
		if(top.topFrameNav.location.pathname=="/blank.htm") top.topFrameNav.location.href="/frame_nav.htm?sel="+intNav;
		else top.topFrameNav.imgNavigation(intNav, 'nav', 'sel'); }
	if(br && top.topFrameNavSub && intNavSub!=6) {
		if(intNav==1) {
			if(!intNavSub) intNavSub=0;
			if(top.topFrameNavSub.location.pathname=="/blank.htm") top.topFrameNavSub.location.href="/frame_nav_serv.htm?serv="+intNavSub;
			else if(top.topFrameNavSub.navSubSel!=intNavSub) top.topFrameNavSub.imgNavigation(intNavSub, 'navSub', 'sel'); }
		else if(top.topFrameNavSub.location.pathname!="/blank.htm") {
			top.topFrameNavSub.location.href="/blank.htm";
			top.topFrameNavSub.navSubSel=-1; } }
  // THE CONTACT "CLICK" HAS TO BE DONE ON ITS OWN AS IT IS A DIFFERENT DOMAIN!
  // THE NAVIGATION SHOULB ALREADY BE THERE!
	if(br && parseInt(intNav)==6) imgNavigation(6, 'nav', 'sel');
}

// WINDOW FUNCTION *********************************************************************************************************
function checkForFrameset() {
	if(self.location.href==top.location.href) top.location.href="/index.htm";
}
function winNew(winName, url, theWidth, theHeight, scroll, showToolbar, allowResize, showStatus, showMenubar, showLocation) {
	if(url && !isNaN(parseInt(theWidth)) && !isNaN(parseInt(theHeight))) {
		intLeft=(screen.width)?(screen.width-theWidth)/2:0;
		intTop=(screen.height)?(screen.height-theHeight)/2:0;
		params="width="+theWidth+",height="+theHeight+",left="+intLeft+",top="+intTop+",scrollbars=";
		params+= (scroll) ? scroll:"no";
		params+=",toolbar=";
		params+= (showToolbar) ? showToolbar:"no";
		params+=",resizable=";
		params+= (allowResize) ? allowResize:"no";
		params+=",status=";
		params+= (showStatus) ? showStatus:"no";
		params+=",menubar=";
		params+= (showMenubar) ? showMenubar:"no";
		params+=",location=";
		params+= (showLocation) ? showLocation:"no";
		popupName=window.open(url, winName, params);
		if(popupName) popupName.focus();
		return false; }
}

// CONFIGURATION ***********************************************************************************************************

/* NAVIGATION */
myNavImages[0]="images/comp";
myNavImages[1]="images/serv";
myNavImages[2]="images/guar";
myNavImages[3]="images/did";
myNavImages[4]="images/data";
myNavImages[5]="images/case";
myNavImages[6]="images/cont";

/* IMAGE CHANGE NAVIGATION - DONE TWICE, AS IT IS DISPLAYED TWICE */
myNavNumImages[0]="images/Im01";
myNavNumImages[1]="images/Im02";
myNavNumImages[2]="images/Im03";
myNavNumImages[3]="images/Im04";

/* SUB-NAVIGATION */
/* these are in the code of each of these pages - as they are specific to an individual page only */