//Show Hide opacity layers at the images modelu

function hidediv(id) {
	var mendivs = new Array();
	mendivs[0] = "1";
	//mendivs[1] = "2";
	mendivs[1] = "3";
	mendivs[2] = "4";
	mendivs[3] = "6";
	mendivs[4] = "0";
	mendivs[5] = "2";
	
	for (i=0;i<mendivs.length;i++)
	{
		document.getElementById("navdropdown"+mendivs[i]).style.display = 'none';
	}
}

function showdiv(id) {
	document.getElementById(id).style.display = 'block';
	//$("#"+id).slideDown('slow');
}
function showdiv2(id) {
	//document.getElementById(id).style.display = 'block';
	var mendivs = new Array();
	
	mendivs[0] = "1";
	//mendivs[1] = "2";
	mendivs[1] = "3";
	mendivs[2] = "4";
	mendivs[3] = "6";
	mendivs[4] = "0";
	mendivs[5] = "2";
	
	for (i=0;i<mendivs.length;i++)
	{
		document.getElementById("navdropdown"+mendivs[i]).style.display = 'none';
	}
	//$("#"+id).slideDown('fast');
	document.getElementById(id).style.display = 'block';
	
}

function togglediv(id) {
    if(document.getElementById(id).style.display == 'none') {
        document.getElementById(id).style.display = 'block';
    } else {
        document.getElementById(id).style.display = 'none';
    }
}

//Change state

function overstate(nombreCapa){
	document.getElementById(nombreCapa).className="overstat";
}

function offstate(nombreCapa){
	document.getElementById(nombreCapa).className="offstat";
}


function overstatedouble(nombreCapa, nombreEnlace){
	//document.getElementById(nombreCapa).className="overstat";
	document.getElementById(nombreEnlace).className="overlink";
}

function offstatedouble(nombreCapa, nombreEnlace){
	//document.getElementById(nombreCapa).className="offstat";
	document.getElementById(nombreEnlace).className="offlink";
}

//Validate forms

function valid_email(s) {
    return(s.search('^[\\w-\\.]+@([\\w-]+\\.)+[\\w-]{2,4}$') != -1);
}
function valid_alphanum(s) {
    return(s.search('\\w+') != -1);
}

// rollover
function imagechange(id, file) {
    document.getElementById(id).src = file;
}