$(function() {

	load_ymm_dropdown();


});

function load_ymm_dropdown() {

	var el_ymm		 		= document.getElementById("ymm");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_model 			= document.getElementById("ymm_model");

	if (el_ymm != null) {


		$(el_ymm_make).change( function() {
			makeChange(this.value);
		});
		$(el_ymm_year).change( function() {
			yearChange(el_ymm_make.value,this.value);
		});
		$(el_ymm_model).change( function() {
			modelChange(el_ymm_make.value, el_ymm_year.value, this.value);
		});

		if (!el_ymm_model.disabled) {
			el_ymm_model.disabled = true;
		}

					el_ymm_make.options.length=1;
			el_ymm_make.options[0] = new Option('PONTIAC', '1697');
			getMakes();
			getYearsByMake(1697);
		
		$(el_ymm).submit( function() {
			return ymm_submit();
		});


		$(el_ymm).attr("action", "http://www.innerauto.com/store/parts.php");


	}

}


function makeChange(make) {

	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_model 			= document.getElementById("ymm_model");

	if (!el_ymm_model.disabled) {
		el_ymm_model.disabled = true;
		el_ymm_model.options.length=1;
	}

	if(el_ymm_make.value != make) {
		el_ymm_make.value = make;
	}

	if (make!="") {
		getYearsByMake(make);
	}else{
		el_ymm_year.value = "";
		el_ymm_year.disabled = true;
	}

}

function yearChange(make,year) {

	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_model 			= document.getElementById("ymm_model");


	if (!el_ymm_model.disabled) {
		el_ymm_model.disabled = true;
		el_ymm_model.options.length=1;
	}

	if (el_ymm_year.value != year) {
		el_ymm_year.value = year;
	}

	if (year!="") {

		getModelsByMakeYear(year,make);

		if (!el_ymm_model.disabled) {
			el_ymm_model.disabled = true;
			el_ymm_model.options.length=1;
		}

	}

}



function modelChange(year,make,model) {

	var el_ymm			 			= document.getElementById("ymm");
	var el_ymm_model 			= document.getElementById("ymm_model");

	if(el_ymm_model.value != model) {
		el_ymm_model.value = model;
	}

	if (model!="") {
		$(el_ymm)[0].submit();
	}

}

function getMakes() {
	var el_my_make 			= document.getElementById("ymm_make");

	var select_make_text = "";
	select_make_text = el_my_make.options[0].text;
	el_my_make.options[0].text = "Loading Makes...";

	$.get("/store/ajax/php/getYearsByMake.php", { N: 0 },
	  function(makes){

	  	makes = $.trim(makes);
	  	makes = makes.split("|");

  		el_my_make.options.length=1;
			for (i=0; i<makes.length; i++) {
					makes[i] = makes[i].split("*");
					el_my_make.options[i+1] = new Option(makes[i][0], makes[i][1]);
					if(el_my_make.options[i+1].text.toUpperCase()=='PONTIAC'){
						el_my_make.options[i+1].selected = true;
					}else{
						el_my_make.options[i+1].selected = false;
					}
			}

			el_my_make.disabled = false;
			el_my_make.options[0].text = 'Select Make';
			el_my_make.options[0].value = "";

		}
	);

};

function getYearsByMake(make) {

	var el_my_year 			= document.getElementById("ymm_year");

	var select_year_text = "";
	select_year_text = el_my_year.options[0].text;
	el_my_year.options[0].text = "Loading Years...";

	$.get("/store/ajax/php/getYearsByMake.php", { N: make },
	  function(years){

	  	years = $.trim(years);
	  	years = years.split("|");

  		el_my_year.options.length=1;
			for (i=0; i<years.length; i++) {
				years[i] = years[i].split("*");
				el_my_year.options[i+1] = new Option(years[i][0], years[i][1]);

			}

			el_my_year.disabled = false;
			el_my_year.options[0].text = 'Select Year';

		}
	);

};

function getModelsByMakeYear(year,make) {

	var el_ymm_model 			= document.getElementById("ymm_model");

	var select_model_text = "";
	select_model_text = el_ymm_model.options[0].text;
	el_ymm_model.options[0].text = "Loading Models...";
	var N = year + '+' + make;
	$.get("/store/ajax/php/getModelsByMakeYear.php", { N: N, make: make },
	  function(models){

	  	models = $.trim(models);
	  	models = models.split("|");

  		el_ymm_model.options.length=1;

			for (i=0; i<models.length; i++) {
				models[i] = models[i].split("*");
				el_ymm_model.options[i+1] = new Option(models[i][0], models[i][1]);
			}

			el_ymm_model.disabled = false;
			el_ymm_model.options[0].text = select_model_text;

		}
	);

}

function ymm_submit() {

	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_model 			= document.getElementById("ymm_model");

	var year_select = true;
	var make_select = true;
	var model_select = true;

	if (el_ymm_make.value=="") {
		make_select = false;
	}

	if (el_ymm_year.value=="") {
		year_select = false;
	}

	if (el_ymm_model.value=="") {
		model_select = false;
	}

	if (year_select && make_select && model_select) {
		return true;
	}

	if (!year_select && !make_select && !model_select) {
		alert("You must select a Year, Make, and Model to continue!");
		return false;
	}

	if (year_select && !make_select && !model_select) {
		alert("You must select a Make and Model to continue!");
		return false;
	}

	if (year_select && make_select && !model_select) {
		alert("You must select a Model to continue!");
		return false;
	}
    
    if (!year_select && make_select && !model_select) {
		alert("You must select a Year and Model to continue!");
		return false;
	}


}