function showSpan(part){			
	var display = eval("span" + part + ".style.display ");				
	if(display == 'inline' || display == ''){	
		eval("span" + part + ".style.display = 'none'");
		eval("document.Form.img" + part + ".src = '../Images/news/plus.gif'");
	}else{					
		eval("span" + part + ".style.display = 'inline'");
		eval("document.Form.img" + part + ".src = '../Images/news/minus.gif'");
	}
}