function showhide(id) {
	//odpremo/zapremo posredovan id
	if (document.getElementById){
		obj = document.getElementById(id);
		if (obj.style.display == "none"){
			obj.style.display = "";
		}
		else {
			obj.style.display = "none";
		}
	}
	//zapremo vse ostale
	var alldiv = document.getElementsByTagName("div");
	for (var i=0; i<alldiv.length; i++) {
		divid=alldiv[i].getAttribute("id");
		if(divid) {
			div_end=divid.substr(divid.length-2, 2);
			if((div_end=="_o" || div_end=="_t") && divid!=id) {
				obj1=document.getElementById(divid);
				obj1.style.display = "none";
				//alert(divid);	
			}
		}
	}
} // JavaScript Document