function showHide(id) {
	var div;
	div = $(id);
	if(div.style.display == 'none') {
		div.style.display = 'block';
	}else {
		div.style.display = 'none';
	}
}

function $(id) {
	return document.getElementById(id);
}

function popup(url)	  
{	   
 	window.open(url, "", "toolbar=no, menubar=no, location=no, personalbar=no, status=no, resizable=yes, scrollbars=yes, copyhistory=yes, width=200, height=100, top=300, left=300");	 
}