function replace(string,text,by) {
    // Replaces text with by in string
    var strLength = string.length, txtLength = text.length;
    if ((strLength == 0) || (txtLength == 0)) return string;

    var i = string.indexOf(text);
    if ((!i) && (text != string.substring(0,txtLength))) return string;
    if (i == -1) return string;

    var newstr = string.substring(0,i) + by;

    if (i+txtLength < strLength)
        newstr += replace(string.substring(i+txtLength,strLength),text,by);

    return newstr;
}

function goback() {
history.back()
}

function drawAlert() {
alert ("Sorry, this link is unavailabe at present!");
}

function LegalPopUp(url, win)
	{
	msgWindow=window.open(url,win,"toolbar=no,top=10,left=10,width=376,height=250,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function PanoPopUp(url, win)
	{
	msgWindow=window.open(url,win,"toolbar=no,top=10,left=60,width=426,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function PanoPopUp2()
	{
	window.open('pano/pano.asp','pano',"toolbar=no,top=10,left=60,width=426,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function BuoyPopUp()
	{
	window.open('buoy.asp','info',"toolbar=no,top=10,left=25,width=428,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function Buoy2PopUp()
	{
	window.open('buoy2.asp','info',"toolbar=no,top=10,left=25,width=428,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	}

function ConversionPopUp()
	{
	window.open('conversion.asp','info',"toolbar=no,top=10,left=25,width=428,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function ProcessPopUp()
	{
	window.open('process.asp','info2',"toolbar=no,top=10,left=25,width=628,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function TurretPopUp()
	{
	window.open('turret.asp','info',"toolbar=no,top=10,left=25,width=428,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function WishbonePopUp()
	{
	window.open('wishbone.asp','info',"toolbar=no,top=10,left=25,width=428,height=450,directories=no,status=yes,resize=no,scrollbars=yes,menubar=no")
	} 
	
function LayoutsPopUp(url, win)
	{
	msgWindow=window.open(url,win,"toolbar=no,top=10,left=60,width=786,height=550,directories=no,status=no,resize=no,scrollbars=yes,menubar=no")
	} 
	
if (document.images) {

// Preload Rollover "on" images
	img1on=new Image();
	img1on.src="images/b_comp_on.gif";
	img2on=new Image();
	img2on.src="images/b_prod_on.gif";
	img3on=new Image();
	img3on.src="images/b_ops_on.gif";
	img4on=new Image();
	img4on.src="images/b_hseq_on.gif";
	img5on=new Image();
	img5on.src="images/b_cont_on.gif";
	img6on=new Image();
	img6on.src="images/b_res_on.gif";
	img7on=new Image();
	img7on.src="images/b_press_on.gif";
	img8on=new Image();
	img8on.src="images/b_down_on.gif";
	img9on=new Image();
	img9on.src="images/b_car_on.gif";
	img10on=new Image();
	img10on.src="images/b_world_on.gif";
	img11on=new Image();
	img11on.src="images/f_print_on.gif";
	img12on=new Image();
	img12on.src="images/b_enquiries_on.gif";

// Preload Rollover "off" images
	img1off=new Image();
	img1off.src="images/b_comp_off.gif";
	img2off=new Image();
	img2off.src="images/b_prod_off.gif";
	img3off=new Image();
	img3off.src="images/b_ops_off.gif";
	img4off=new Image();
	img4off.src="images/b_hseq_off.gif";
	img5off=new Image();
	img5off.src="images/b_cont_off.gif";
	img6off=new Image();
	img6off.src="images/b_res_off.gif";
	img7off=new Image();
	img7off.src="images/b_press_off.gif";
	img8off=new Image();
	img8off.src="images/b_down_off.gif";
	img9off=new Image();
	img9off.src="images/b_car_off.gif";
	img10off=new Image();
	img10off.src="images/b_world_off.gif";
	img11off=new Image();
	img11off.src="images/f_print_off.gif";
	img12off=new Image();
	img12off.src="images/b_enquiries_off.gif";}

// Activating the menu rollovers

function imgAct(imgName) {
	if (document.images) {
document[imgName].src=eval(imgName+"on.src");
	}
}

// Deactivating the menu rollovers

function imgInact(imgName) {
	if (document.images) {
document[imgName].src=eval(imgName+"off.src");
	}
}