function centreWorkAreaDiv()
{
				var msgbox = document.getElementById("container");
				
				var winH=0;
				var winW=0;
				if (parseInt(navigator.appVersion)>3) {
 					if (navigator.appName.indexOf("Netscape")!=-1) {
  						winW = window.innerWidth-16;
  						winH = window.innerHeight;
 					}
 					if (navigator.appName.indexOf("Microsoft")!=-1) {
  						winW = document.body.offsetWidth-20;
  						winH = document.body.offsetHeight-20;
 					}
				}
		 		
	  			
  				var x = (winW/2) - (msgbox.offsetWidth/2);
  				var y = (winH/2) - (msgbox.offsetHeight/2);              
  				
				if(winW > 800){
	  				msgbox.style.left = x + 'px';
				}
				
				if(winH > 830){			
					msgbox.style.top = y +'px';
				}

  				msgbox.style.display = "block";
}

	
function showServicesSubMenu(v, item)
{	

	if(v){
		item.style.background = '#C27938';
		item.style.cursor = 'pointer';
	}else{
		item.style.background = '#E8BF58';//'#B29F44';
		item.style.cursor = 'default';
	}
	
	var menuItemService = document.getElementById('menuItemServices');
	var subMenuService = document.getElementById('divServicesSubMenu');

	if(menuItemService && subMenuService && item.id=='menuItemServices'){
		if(v){ 
			item.style.cursor='pointer';
			subMenuService.style.top='-618px';
			subMenuService.style.left='146px';
			subMenuService.style.zindex='10';
			subMenuService.style.background='#D0B87E';
			subMenuService.style.visibility = 'visible';
		}else{
			item.style.cursor='default';	
			subMenuService.style.background='#C27938';
			subMenuService.style.visibility = 'hidden';
		}
	}else{
		//remain silent about unavailability
	}
}	

function toggleColourServicesSubMenu(v, item){
	if(v){
		item.style.background = 'orange';
		item.style.cursor = 'pointer';
	}else{
		item.style.background = '#D0B87E';
		item.style.cursor = 'default';
	}
}

function mouseOnSubMenu(v, item){
		if(v){
			item.style.visibility = 'visible';
		}else{
			item.style.visibility = 'hidden';
		}
	
}

function gotoPage(pg){
	var subMenuService = document.getElementById('divServicesSubMenu');

	document.getElementById('iframeMainContent').src = pg;
	if(pg.indexOf('service_')==0){
		//alert('...');
		subMenuService.style.top='-243px';
		subMenuService.style.left='-150px';
	}
}


function fnPrevNext(pg){
	parent.document.getElementById('iframeMainContent').src = pg;
}