function HoverImgOf(filename)
{
   var re = new RegExp("(.+)\\.(gif|png|jpg)", "g");
   return filename.replace(re, "$1_off.$2");
}


function NormalImgOf(filename)
{
   var re = new RegExp("(.+)_off\\.(gif|png|jpg)", "g");
   return filename.replace(re, "$1.$2");
}


function validateField(e, extensions) {
    var v = e.value;
    if (v.length == 0)
        return;
    
    v = v.toLowerCase();
    ext = v.substring(v.lastIndexOf('.') + 1,v.length);

    var result = false;
    for (var index = 0; index < extensions.length; ++index) {
        if (ext == extensions[index])
            result = true;
    }

    if (! result) {
        var tmp = '';
        for (var i= 0; i < extensions.length; ++i) {
            if (i > 0) tmp += ', ';
            tmp += extensions[i];
        }

        e.value = '';
        //allowMessage(e, 'Extensões permitidas: ' + tmp);
        alert('Extensões permitidas: ' + tmp);
        return;
    }
}


function closeParentWin(){
	top.$('#modalWindow').jqmHide();
	return false;
}