$(function() {
	load_my_dropdown();

});


function load_my_dropdown() {

	var el_my		 		= document.getElementById("my");
	var el_my_year 			= document.getElementById("my_year");
	var el_my_make 			= document.getElementById("my_make");


	if (el_my != null) {

		$(el_my_year).change( function() {
			yearChange(el_my_make.value, this.value);
		});


		$(el_my_make).change( function() {
			makeChange(this.value);
		});



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



					el_my_make.options.length=1;
			el_my_make.options[0] = new Option('MITSUBISHI', '1676');
			getMakes();
			getYearsByMake(1676);
		

		$(el_my).submit( function() {
			return my_submit();
		});


		$(el_my).attr("action", "http://www.mitsubishipartstore.com/catalog/models.php");

	}

};

function yearChange(make,year) {

	var el_my		 			= document.getElementById("my");
	var el_my_year 			= document.getElementById("my_year");
	var el_my_make 			= document.getElementById("my_make");



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


	if ( el_my_year.value != "" )
	{

		el_my.submit();
	}


};

function makeChange(make) {

	var el_my_make 			= document.getElementById("my_make");
	var el_my_year 			= document.getElementById("my_year");


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

	if ( el_my_make.value != "" ) {
		getYearsByMake(make);
	}
	else
	{
		el_my_year.options.length = 1;
	}
};



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

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

	$.get("/catalog/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()=='MITSUBISHI'){
						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("my_year");

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

	$.get("/catalog/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("*");
				if (years[i][0] > 1944) { // exclude years on or before 1944 for it doesnt return any makes in the year-make dropdowns ++alvin jan082008
				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 my_submit() {

	var el_my_year 			= document.getElementById("my_year");
	var el_my_make 			= document.getElementById("my_make");

	var year_select = true;
	var make_select = true;


	if (el_my_year.value=="") {
		year_select = false;
	}
	if (el_my_make.value=="") {
		make_select = false;
	}


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

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

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

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


};