var submitted = false;

function docmd( command, id )
{
    if ( submitted ) return false;
    submitted = true;

    if ( command=='home' )
    {
    	document.main.action='index.htm';
    	document.main.method='get';
    }
    else
	{
		document.main.id.value = id;
		document.main.cmd.value = command;
		document.main.target = window.name;

		//alert( 'cmd '+ document.main.cmd.value + ', id='+id );
	}

    document.main.submit();
    return false;
}


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


function setCookie( c_name, value, expiredays )
{
	var exdate = new Date()
	exdate.setDate(exdate.getDate()+expiredays)
	document.cookie=c_name+ "=" +escape(value)+
		((expiredays==null) ? "" : ";expires="+exdate.toGMTString())
}

function getCookie( c_name )
{
	if (document.cookie.length>0)
	{
		c_start=document.cookie.indexOf(c_name + "=")
		if (c_start!=-1)
		{
			c_start=c_start + c_name.length+1
			c_end=document.cookie.indexOf(";",c_start)
			if (c_end==-1) c_end=document.cookie.length
				return unescape(document.cookie.substring(c_start,c_end))
		}
	}
	return ""
}


function isInt(x)
{
	var y=parseInt(x);
	if (isNaN(y)) return false;
	return x==y && x.toString()==y.toString();
}