function goforit()
{
var available_width;
var available_height;

if(is.ns4)
	{
    doc = "document";
    sty = "";
    htm = ".document";
	available_width=innerWidth;
	available_height=innerHeight;
	}
else if(is.ie4)
	{
    doc = "document.all";
    sty = ".style";
    htm = "";
	available_width=document.body.clientWidth;
	available_height=document.body.clientHeight;
	}

//document["rtextLyr"].left = mainx;
//document.all["rtextLyr"].style.left = mainx;

behlabObj = eval(doc + '["behlabLyr"]' + sty);
behlabObj.left = mainx;
behlabObj.top = mainy;
behlabObj.width = (available_width - mainx) * iewide;
behlabObj.visibility = "visible";

assignedObj = eval(doc + '["assignedLyr"]' + sty);
assignedObj.left = mainx;
assignedObj.top = mainy;
assignedObj.width = (available_width - mainx) * iewide;

assessObj = eval(doc + '["assessLyr"]' + sty);
assessObj.left = mainx;
assessObj.top = mainy;
assessObj.width = (available_width - mainx) * iewide;

lmenuObj = eval(doc + '["lmenuLyr"]' + sty);
lmenuObj.visibility = "visible";
}

var menu_selection = "behlab";

function menuToggle(selection)
{
var old_page = eval(menu_selection + "Obj");
old_page.visibility = "hidden";
var new_page = eval(selection + "Obj");
new_page.visibility = "visible";
menu_selection = selection;
}