function DoNav(theUrl) {
				document.location.href = theUrl;
			}
			function toggleLayer( whichLayer) {
				var elem, vis;
				if( document.getElementById ) // this is the way the standards work
					elem = document.getElementById( whichLayer );
				else if( document.all ) // this is the way old msie versions work
					elem = document.all[whichLayer];
				else if( document.layers ) // this is the way nn4 works
					elem = document.layers[whichLayer];
				vis = elem.style;
				// if the style.display value is blank we try to figure it out here
				if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
					vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
					vis.display = (vis.display==''||vis.display=='block')?'none':'block';
			}

function hide_box() {
	if (navigator.appVersion.indexOf("MSIE")!=-1) {
		if (navigator.appVersion.indexOf("7.0")<0) {
			selects = document.getElementsByTagName("select");
			for (i = 0; i != selects.length; i++) {
        		selects[i].style.visibility = "hidden";
        	}
		}			
	}	
}
function view_box() {
	if (navigator.appVersion.indexOf("MSIE")!=-1) {
		if (navigator.appVersion.indexOf("7.0")<0) {		
			selects = document.getElementsByTagName("select");
			for (i = 0; i != selects.length; i++) {
				selects[i].style.visibility = "visible";
        	}
		}			
	}	
}