var m1c, m1t;
var m2c, m2t;
var m3c, m3t;

function m1s(name) {
	if ( m1c && m1c != name )
		layer_hide(m1c);
	m1c = name;
	layer_show(m1c);
	if ( m1t )
		clearTimeout(m1t);
	m1t = 0;
}

function m1h(name) {
	m1t = setTimeout('layer_hide(\''+name+'\')', 500);
}

function m2s(name) {
	if ( m2c && m2c != name )
		layer_hide(m2c);
	m2c = name;
	layer_show(m2c);
	if ( m1t )
		clearTimeout(m1t);
	if ( m2t )
		clearTimeout(m2t);
	m1t = 0;
	m2t = 0;
}

function m2h(name) {
	m1t = setTimeout('layer_hide(\''+m1c+'\')', 500);
	m2t = setTimeout('layer_hide(\''+name+'\')', 500);
}

function hideSelect(){
	if (document.forms[1]){
		for (var ii=0; ii<document.forms[1].length; ii++){
			if (document.forms[1].elements[ii].tagName =='SELECT' && 
				document.forms[1].elements[ii].style.top<300){
				document.forms[1].elements[ii].style.visibility = 'hidden';
            }
        }
    }                    
}

function showSelect(){ 
 	if (document.forms[1]){
 		for (var ii=0; ii<document.forms[1].length; ii++){
 			if (document.forms[1].elements[ii].tagName == 'SELECT' ){
				document.forms[1].elements[ii].style.visibility = 'visible';
			}
        }
     }                         
}