ie4=(document.all)?true:false;
ns4=(document.layers)?true:false;
ns6=(document.getElementById)?true:false;

function show(id) {
	if(ie4) {document.all[id].style.visibility = "visible"}
	if(ns4) {document.layers["layerpadre"].document.layers[id].visibility = "show"}
	if(ns6) {document.getElementById(id).style.visibility = "visible"}
}

function hide(id) {
	if(ie4) {document.all[id].style.visibility = "hidden"}
	else if(ns4) {document.layers["layerpadre"].document.layers[id].visibility = "hide"}
	else if(ns6) {document.getElementById(id).style.visibility = "hidden"}
}

function layStyle(layId) {
    if(ie4)
        return ('document.all.'+layId+'.style');
    if(ns4)
        return ('document.layers["layerpadre"].document.layers["'+layId+'"]');
    if(ns6)
        return ('document.getElementById(\''+layId+'\').style');
}

var menuAct = -1;

function chkMenu(menuid) {
    menuAct=menuid;
    setTimeout("mclose()",100);
}
function mclose() {
    if(menuAct!=-1)
        eval('hide("m'+menuAct+'open")');
}

function showHide(lid) {
    if(lid!=null)
        eval('show(\'m'+lid+'open\')');
    for(i=2; i< 3; ++i)  {
        if(lid!=i)
            eval('hide(\'m'+i+'open\')');
    }
}

function go_vd(form,sel_date,sd_date1,sd_date2,sd_date1val,sd_date2val)
{
	if(sd_date1val)
		document.all[sd_date1].value=sd_date1val;
	else
		document.all[sd_date1].value="aaaa-mm-jj";
	
	if(sd_date2val)
		document.all[sd_date2].value=sd_date2val;
	else
		document.all[sd_date2].value="aaaa-mm-jj";
		
	rang = form.elements[sel_date].selectedIndex;
//	alert(rang);
	if (form.elements[sel_date][0].value==rang) 
	{
		document.all[sd_date1].style.visibility="hidden";
		document.all[sd_date2].style.visibility="hidden";
	}
	else if (form.elements[sel_date][1].value==rang) 
	{
		document.all[sd_date1].style.visibility="visible";
		document.all[sd_date2].style.visibility="hidden";
	}
	else if (form.elements[sel_date][2].value==rang) 
	{
		document.all[sd_date1].style.visibility="visible";
		document.all[sd_date2].style.visibility="hidden";
	}
	else if (form.elements[sel_date][3].value==rang) 
	{
		document.all[sd_date1].style.visibility="visible";
		document.all[sd_date2].style.visibility="hidden";
	}
	else if (form.elements[sel_date][4].value==rang) 
	{
		document.all[sd_date1].style.visibility="visible";
		document.all[sd_date2].style.visibility="visible";
	}
}