// javascript functions IONwebdesign


ns4 = (document.layers) ? true:false 
ie4 = (document.all) ? true:false 
ng5 = (document.getElementById) ? true:false 

function hideBox(n) { 
if (ng5) document.getElementById(n).style.visibility = "hidden" 
else if (ns4) document[n].visibility = "hide" 
else if (ie4) [n].style.visibility ="hidden" 

//if (ng5) 
//document.getElementById('box2').style.visibility = "hidden" 
//else if (ns4) document.box2.visibility = "hide" 
//else if (ie4) box2.style.visibility ="hidden" 
} 

function showBox(n) { 
switch(n) {
	case 'box1':
	hideBox('box2');
	hideBox('box3');
	hideBox('box4');
	break;
case 'box2':
	hideBox('box1');
	hideBox('box3');
	hideBox('box4');
	break;
case 'box3':
	hideBox('box2');
	hideBox('box1');
	hideBox('box4');
	break;
case 'box4':
	hideBox('box1');
	hideBox('box2');
	hideBox('box3');
	break;
} //close switch
//hideBox(); 
if (ng5) document.getElementById(n).style.visibility = "visible"; 
else if (ns4) document.layers[n].visibility = "show"; 
else if (ie4) document.all[n].style.visibility = "visible"; 
}