//create variables to help us deal with cross platform javascript and 'div's.
var pre;
var post;
if(document.layers){
	//Netscape 4 specific code
	pre = 'document.';
	post = '';
}
if(document.getElementById){
	//Netscape 6 specific code
	pre = 'document.getElementById("';
	post = '").style';
}
if(document.all){
	//IE4+ specific code
	pre = 'document.all.';
	post = '.style';
}
//end cross platform code


function go(destination)
{
	if (destination) location.href = destination;
}//end go

function showHideDiv(layer_ref) { 
	var layerStyleObject = eval(pre + layer_ref + post);
	if(layerStyleObject.display != 'none')
	{
		layerStyleObject.display = 'none';
	}
	else
	{
		layerStyleObject.display = 'block';
	}
}//end showHideDiv