var tickerTextArray = new Array();
var tickerCount = 0;
var tickerLine = 0;
var IsMac,IE4,NS4,IE5,NS6;
var availableHeight,availableWidth;
var blinkStatus = false;
var blinkChar;
var tickerID;


function checkBrowser() {
//check client browser type

   	var agt=navigator.userAgent.toLowerCase();
    	isMac    = (agt.indexOf("mac")!=-1);
	IE4 = (document.all && !document.getElementById) ? true : false;
	NS4 = (document.layers) ? true : false;
	IE5 = (document.all && document.getElementById) ? true : false;
	NS6 = (document.getElementById && !document.all) ? true : false;

}


checkBrowser();

function setLayerObject(objID,left,top,visibility) {
//set visibilities and position of objects
		if (IE5 || NS6) {
			this.obj = document.getElementById(objID).style;
			this.obj.left = left;
			this.obj.top = top;
			this.obj.visibility = visibility;

		}

		else if(IE4) {
			this.obj = document.all[objID].style;
			this.obj.left = left;
			this.obj.top = top;
			this.obj.visibility = visibility;

		}

		else if(NS4) {
			this.obj = document.layers[objID];
			this.obj.left = left;
			this.obj.top = top;
			this.obj.visibility = visibility;
		}
}


function startTicker() {

	//this used for NS to clear the timer on a reload
        if (!tickerID) {clearInterval(tickerID);}
	tickerID = setInterval("textTicker()",85);
}

function textTicker() {

        //blink status used to display flashing cursor
	blinkStatus = !blinkStatus;
	blinkChar = (blinkStatus) ? "_" : " ";

	var displayString = tickerTextArray[tickerLine];
	var tempDisp = displayString.substr(0,tickerCount);
	//rip out HTML tags and process them...
	var addStr = "";
        //find first <
	if (displayString.charAt(tickerCount) == "<") {
		while (displayString.charAt(tickerCount)!= ">") {
			addStr=addStr+displayString.charAt(tickerCount);
			tickerCount++;
		}
		addStr+=">";
	}

	if (IE4 || IE5) {

		document.all.tickerLayer.innerHTML = "<SPAN class='tickerlayer'>"+tempDisp+addStr+blinkChar+"</SPAN>";
	}

	else {
    		with (document.layers['tickerLayer'].document) { 
	        open();
                write("<SPAN class='tickerlayer'>"+tempDisp+blinkChar+"</SPAN>");
                close();		
		}
	}
	
	//check to see if come to end of display string.. if so, start again..
	if ( tickerCount > displayString.length) {	
		tickerLine++;

		//check to see if come to end of array of strings, if so, start again...
		if (tickerLine == tickerTextArray.length) {
			tickerCount = 0;
			tickerLine = 0;
		}
	        tickerCount = 0;
	}

	else { 
     		tickerCount++;
        }

}


function getScreenDimensions() {
//get screen dimensions (mainly to positioning floating layers

	if(NS4 || NS6) {
		availableWidth=window.innerWidth;
		availableHeight=window.innerHeight;
		}

	else  {
		//only works after the BODY tag has been processed
		availableWidth=document.body.offsetWidth;
		availableHeight=document.body.offsetHeight;
	}
}

function positionLayer(objID,x,y) {
//position layer relative to the actual size of the screen
	
	getScreenDimensions();
	//this grabs the dimensions of the screen when resizing occurs and calculates
	//the correct positioning of the scrolling layer accordingly.
	var addX = ((availableWidth - 451)/2);
	var tempX = x + addX;
	if (tempX<x) {tempX=x}
 	if (NS4) {}
	var addY = ((availableHeight - 267)/2);
	var tempY = y + addY;
	if (tempYy) {tempY=y}
 	if (NS4) {}
	setLayerObject(objID,tempX,tempY,'visible');

}

//!------PHP coding -------- Ehtasham ul Haq------->
//<!------Creation Date -----  ----->
//<!------Last Modified ----- 01-04-2004 -----> 
		tickerTextArray[0] = "<b>Fasttrack: </b>Unique concept in the vehicle servicing                                      ";
		tickerTextArray[1] = "<b>Emarat Smart Cards - Em-Cash: </b>The first re-loadable pre-paid card in Dubai...                                      ";
		tickerTextArray[2] = "<b>Emarat Smart Cards – Safeer: </b>Credit based smart cards.. the key to better financial control of your company fleet...                                      ";
		tickerTextArray[3] = "<b>Emarat Smart Cards – Atheer: </b>A pre-paid smart card for small fleets and individual drivers...                                      ";



//tickerTextArray[1] = "<b>New Tender - Open till 25/01/2004: </b>Redevelopment of 'Gulf' filling station in Ajman. 					      ";
//tickerTextArray[2] = "<b>New Tender - Open till 18/01/2004: </b>Repairs and painting of EGPC/Emarat retail outlets.                                           ";
//tickerTextArray[3] = "<b>To view all open tenders, Select 'Trading with Emarat - Tenders from the menu below...                     ";
//tickerTextArray[4] = "<b>Emarat Smart Cards - Safeer:       </b>Credit based smart cards.. the key to better financial control of your company fleet...       ";
//tickerTextArray[5] = "<b>Emarat Smart Cards - Atheer:       </b>A pre-paid smart card for small fleets and individual drivers...                              ";
//tickerTextArray[6] = "<b>Emarat Smart Cards - Em-Cash:      </b>The first re-loadable pre-paid card in Dubai...                                               ";