function clearTable(table){
	var len = table.rows.length;
	try{
		for(var i = len - 1; i >= 0 ; i--)
			table.deleteRow(i);
	}catch(e){alert(e)};
}

function showError(msg, sqlerror){
	var emd = document.getElementById('errormsg');
	emd.innerHTML = '<span>'+msg+'</span><br />'+sqlerror;
	emd.style.visibility = 'visible';
}

function showMsg(msg){
	var emd = document.getElementById('okmsg');
	emd.innerHTML = '<span>'+msg+'</span>';
	emd.style.top = (window.scrollY+window.screen.height/2-150)+"px";
	emd.style.visibility = 'visible';
	setTimeout('okClick()', 5000);
}

function errorClick(){
	var emd = document.getElementById('errormsg');
	emd.innerHTML = '';
	emd.style.visibility = 'hidden';
}

function okClick(){
	var emd = document.getElementById('okmsg');
	emd.innerHTML = '';
	emd.style.visibility = 'hidden';
}