// JScript File
function getModels() {
    var year = $('year').value;//this.options[this.selectedIndex].value;
    var make = $('make').value;
    if(year != 'Select Year' &&  make != 'Select Make') {
        
    	//alert(make);
        new Ajax.Request("models.aspx?year="+year+"&make="+make, {
	            method: 'get',
	            onSuccess: function(transport) {
	                var select = $("model");
                   
                    // clear previous data
                    select.options.length = 1;
                     
                    //alert(transport.responseText);
                    var models = transport.responseText.split("~~");
                    for(var i=0; i<models.length; i++) {
                        if(models[i] != '' || models[i] != ' ' || models[i] != null) {
                            var option = document.createElement('option');
                            
                            option.text = models[i];
                            option.value = models[i];
                            try
                            {
                                select.add(option,null); // standards compliant
                            }
                            catch(ex)
                            {
                                select.add(option); // IE only
                            }
                        }
                    }
    	            
                },
                onFailure: function(transport) {
                    alert(transport.responseText);
                }
        });
    } else {
        $('model').selectedIndex = 0;
    }
}