function setNav () {
	var navcells = new Array('home','advantages','staff','services','eggdonation','successrates','lab','financial','outoftown','contactus');
	var cell ='';
	
	for (i=0; i<navcells.length;i++)  {
		cell = document.getElementById(navcells[i]);
		cell.style.background = 'url(/images-new/nav/nav_off.gif)';
	}
}

function imageOn (myitem) {
	var cell = document.getElementById(myitem);
	cell.style.background = 'url(/images-new/nav/nav_on.gif)';
}

function imageOff (myitem) {
	var cell = document.getElementById(myitem)
	cell.style.background = 'url(/images-new/nav/nav_off.gif)';
}