function update_prices(updatetable,val){
	var tbl=document.getElementById(updatetable);
	switch (val){
	case "rur": val1="rur";
	break;
	case "uah": val1="usd";
	break;
	case "usd": val1="uah";
	break;
	}
	var td=tbl.getElementsByTagName("td");
	for (i=0;i<td.length;i++){
		if(td[i].id==val)
			td[i].style.display="";
		if (td[i].id==val1)
			td[i].style.display="none";
	}
	var tr=tbl.getElementsByTagName("tr");
	for (i=0;i<tr.length;i++){
		if(tr[i].id==val)
			tr[i].style.display="";
		if (tr[i].id==val1)
			tr[i].style.display="none";
	}
	var tr=tbl.getElementsByTagName("th");
	for (i=0;i<tr.length;i++){
		if(tr[i].id==val)
			tr[i].style.display="";
		if (tr[i].id==val1)
			tr[i].style.display="none";
	}


	document.getElementById("price_"+updatetable+"_"+val1).innerHTML="<a href='javascript: void update_prices(\""+updatetable+"\",\""+val1+"\")'>"+val1.toUpperCase()+"</a>";
	document.getElementById("price_"+updatetable+"_"+val).innerHTML="<font class=cursel>"+val.toUpperCase()+"</font>";
}