function check_quantity()
    {                     
        forward=true;
        if($('#qty_input').val().length==0)
            {
                window.alert("Quantity is a required field!");
                forward=false;
                $('#qty_input').focus();
            }
        if($('#qty_input').val()=='0')
                {
                    window.alert("Quantity has to be greater than 0!");
                    forward=false;
                    $('#qty_input').focus();
                }
    }


function check_quantity_feat()
{                     
    forward=true;
    if($('#quantity').val().length==0)
        {
            window.alert("Quantity is a required field!");
            forward=false;
            $('#quantity').focus();
        }
    if($('#quantity').val()=='0')
            {
                window.alert("Quantity has to be greater than 0!");
                forward=false;
                $('#quantity').focus();
            }
}

var jslang='EN';
function clearText(field){

    if (field.defaultValue == field.value) field.value = '';
    else if (field.value == '') field.value = field.defaultValue;

}


$(document).ready(function(){
    
    $(".toggle_container").hide();
    $("a.expander").text("+ click to expand");
    
    $("h6.trigger").toggle(function(){
        $(this).addClass("active");         
        }, function () {
        $(this).removeClass("active");        
    });
    
    $("h6.trigger").click(function(){
        if($("a.expander").text()=="+ click to expand")
            {
                $("a.expander").text("- click to collapse");           
            }
            else
                {
                    $("a.expander").text("+ click to expand");           
                }                                                                  
        $(this).next(".toggle_container").slideToggle("slow,");
    });

});