var year_selected = '';
var make_selected = '';
var model_selected = '';
var submodel_selected = '';
var engine_selected = '';

var yearid_selected = '';
var makeid_selected = '';
var modelid_selected = '';
var submodelid_selected = '';
var engineid_selected = '';
var savecookie = '';

var no_model = false;



$.get("/partfinder/year/0f", function(pfdata) {
	load_ymm_dropdown(pfdata);
});


function disableElement(element, options) {
	
	element.disabled = true;
	if (options) {
		element.options.length = 1;
	}
	
}


function load_ymm_dropdown(data_year) {

	var el_ymm	 				= document.getElementById("ymm");
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine 			= document.getElementById("ymm_engine");
	var el_ymm_submit			= document.getElementById("ymm_submit");
		
	if (el_ymm != null) {
	
		$(el_ymm_year).change( function() {
			
			if(makeid_selected != '' && modelid_selected != ''){
				yearChange(this.value, el_ymm_make.value, el_ymm_model.value);				
				
			}else if(makeid_selected != ''){
				yearChange(this.value, el_ymm_make.value, '');				
				model_selected = '';
				
			}else{
				yearChange(this.value, '', '');		
				make_selected = '';
				model_selected = '';
			}		

		
			submodel_selected = '';
			engine_selected = '';
			disableElement(el_ymm_make, true);
			disableElement(el_ymm_model, true);
			disableElement(el_ymm_submodel, true);
			disableElement(el_ymm_engine, true);
		});

		
		
		$(el_ymm_make).change( function() {			
				
			makeChange(el_ymm_year.value, this.value);
			
			model_selected = '';
			submodel_selected = '';
			engine_selected = '';
			disableElement(el_ymm_model, true);
			disableElement(el_ymm_submodel, true);
			disableElement(el_ymm_engine, true);
		});
		
		

		$(el_ymm_model).change( function() {
			modelChange(el_ymm_year.value, el_ymm_make.value, this.value);
			
			submodel_selected = '';
			engine_selected = '';
			disableElement(el_ymm_submodel, true);
			disableElement(el_ymm_engine, true);
		});
		
		
		
		$(el_ymm_submodel).change( function() {
			submodelChange(el_ymm_year.value, el_ymm_make.value, el_ymm_model.value, this.value);

			engine_selected = '';						
			disableElement(el_ymm_engine, true);															
		});

		
		
		$(el_ymm_engine).change( function() {
			engineChange(el_ymm_year.value, el_ymm_make.value, el_ymm_model.value, el_ymm_submodel.value, this.value);
		});			
					
		
		if (!el_ymm_make.disabled) {
			disableElement(el_ymm_make);
		}

		if (!el_ymm_model.disabled) {
			disableElement(el_ymm_model);
		}

		
		if (!el_ymm_submodel.disabled) {
			disableElement(el_ymm_submodel);
		}

		if (!el_ymm_engine.disabled) {
			disableElement(el_ymm_engine);
		}			
			
		el_ymm_year.options.length=1;	
	
        if (data_year != null) {
            data_year = $.trim(data_year);
            data_year = data_year.split("|");
            for (i=0; i<data_year.length; i++) {
                years = data_year[i].split("*");
                el_ymm_year.options[i+1] = new Option(years[0], years[1]);
    			if(el_ymm_year.options[i+1].text==year_selected){						
    				el_ymm_year.options[i+1].selected = true;
    			}else{
    				el_ymm_year.options[i+1].selected = false;								
                }				
            }
        }

		
        if( yearid_selected == '' && makeid_selected != '' && modelid_selected != ''){
        	el_ymm_model.disabled = true;        	
        	getYearsByMakeModel(makeid_selected, modelid_selected);
        	
        }else if (yearid_selected == '' && makeid_selected != '' && modelid_selected == ''){
        	el_ymm_model.disabled = true;
        	getYearsByMake(makeid_selected);
        	
        }else if(year_selected != ''){
			getMakesByYear(yearid_selected);						
        }
        

        $(el_ymm).submit( function() {												
			return ymm_submit();
		});

		el_ymm_year.disabled = false;
		el_ymm_submit.disabled = false;				
		$(el_ymm).attr("action", "/templates/catalog/partfinder.php");
	}
}
            

function yearChange(year, make, model) {

	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine			= document.getElementById("ymm_engine");

	if (!el_ymm_make.disabled) {
		disableElement(el_ymm_make, true);
	}
	if (!el_ymm_model.disabled) {		
		disableElement(el_ymm_model, true);
	}
	if (!el_ymm_submodel.disabled) {		
		disableElement(el_ymm_submodel, true);
	}
	if (!el_ymm_engine.disabled) {		
		disableElement(el_ymm_engine, true);
	}
	if (el_ymm_year.value != year) {
		el_ymm_year.value = year;
	}

	
	if (year!="") {		
	
	
		if( make != '' && model != ''){
			getMakesByYear(year);	
			
			if (!el_ymm_engine.disabled) {
				el_ymm_engine.disabled = true;
				el_ymm_engine.options.length=1;
			}
					
		}else if( make != ''){
			getMakesByYear(year);	
					
		}else{
			getMakesByYear(year);

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

	} else {		
		
		disableElement(el_ymm_make, true);
		disableElement(el_ymm_model, true);
		disableElement(el_ymm_submodel, true);
		disableElement(el_ymm_engine, true);
	}

}

function makeChange(year, make) {

	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine			= document.getElementById("ymm_engine");

	
	if(el_ymm_make.value != make) {
		el_ymm_make.value = make;
	}
	if (!el_ymm_model.disabled) {		
		disableElement(el_ymm_model, true);
	}
	if (!el_ymm_submodel.disabled) {		
		disableElement(el_ymm_submodel, true);
	}
	if (!el_ymm_engine.disabled) {		
		disableElement(el_ymm_engine, true);
	}	
	
	if (year != "" && make != "") {
	
		getModelsByMakeYear(year,make);
	
		if (!el_ymm_submodel.disabled) {
			el_ymm_submodel.disabled = true;
			el_ymm_submodel.options.length=1;
		}
		if (!el_ymm_engine.disabled) {
			el_ymm_engine.disabled = true;
			el_ymm_engine.options.length=1;
		}	
		
	} else {
		
		disableElement(el_ymm_model, true);	
		disableElement(el_ymm_submodel, true);	
		disableElement(el_ymm_engine, true);	
						
	}
}

function modelChange(year,make,model) {
	
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine			= document.getElementById("ymm_engine");

	if(el_ymm_model.value != model) {
		el_ymm_model.value = model;
	}
	
	if (!el_ymm_engine.disabled) {		
		disableElement(el_ymm_engine, true);
	}	
	
	if (!el_ymm_submodel.disabled) {
		disableElement(el_ymm_submodel, true);
	}	
	
	
	if( year != "" && make != "" && model !="" ) {
	
		getSubModelsByYearMakeModel(year,make,model);
		
		if (!el_ymm_engine.disabled) {
			el_ymm_engine.disabled = true;
			el_ymm_engine.options.length=1;
		}			

	} else {	
		disableElement(el_ymm_submodel, true);	
		disableElement(el_ymm_engine, true);			
	}
	
}



function submodelChange(year,make,model,submodel) {

	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine			= document.getElementById("ymm_engine");
	
	if(el_ymm_submodel.value != submodel) {
		el_ymm_submodel.value = submodel;		
	}
	
	if (!el_ymm_engine.disabled) {
		el_ymm_engine.disabled = true;
		el_ymm_engine.options.length=1;
	}	
	
	if( year != "" && make != "" && model != "" && submodel!="" ) {
	
		getEngineByYearMakeModelSubModel(year,make,model,submodel);
		
	} else {
		disableElement(el_ymm_engine, true);	

	}
	
}

function engineChange(year, make, model, submodel, engine) {
	
	var el_ymm					= document.getElementById("ymm");
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine			= document.getElementById("ymm_engine");
	
	if(el_ymm_engine.value != engine) {
		el_ymm_engine.value = engine;
	}	

	if ( year != "" && make != "" && model != "" && submodel!="" && engine != "") {		
		if(savecookie == "" ){
			$(el_ymm)[0].submit();
		}
	}	
}


/** ************************************************************************** **/


function getMakesByYear(year) {

	var el_ymm 					= document.getElementById("ymm");
	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine			= document.getElementById("ymm_engine");
	var el_ymm_submit			= document.getElementById("ymm_submit");
	
	var select_make_text = "";
	select_make_text = el_ymm_make.options[0].text;
	el_ymm_make.options[0].text = "Loading Makes...";
	

	$.get("/partfinder/make/year/"+year+"f", function(makes){

	  	if(makes!=""){
	  		makes = $.trim(makes);
	  		makes = makes.split("|");

  			el_ymm_make.options.length=1;	
  		  		
			for (i=0; i<makes.length; i++) {
				makes[i] = makes[i].split("*");
				el_ymm_make.options[i+1] = new Option(makes[i][0], makes[i][1]);								
				
				if(el_ymm_make.options[i+1].text.toUpperCase()==make_selected.toUpperCase()){								
					el_ymm_make.options[i+1].selected = true;
					
				}else{
					el_ymm_make.options[i+1].selected = false;
				}												
			}											
			
			if (make_selected != ''){		
				getModelsByMakeYear(year,makeid_selected);
				
			}
			
			el_ymm_make.disabled = false;
			el_ymm_make.options[0].text = select_make_text;						
					
		}else{			
			
			if( el_ymm_year.value!=yearid_selected){
				$(el_ymm)[0].submit();
			}
		}
		el_ymm_make.options[0].text = select_make_text;						
	
	   }
	);
}


function getYearsByMake(make) {

	var el_ymm                = document.getElementById("ymm");
    var el_ymm_year           = document.getElementById("ymm_year");
    var el_ymm_make           = document.getElementById("ymm_make");
    var el_ymm_model          = document.getElementById("ymm_model");
    var el_ymm_submodel       = document.getElementById("ymm_submodel");
    var el_ymm_engine         = document.getElementById("ymm_engine");
    var el_ymm_submit			= document.getElementById("ymm_submit");

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

    $.get("/partfinder/year/make/"+make+"f", function(years){

    	if(years!=""){
        	years = $.trim(years);
            years = years.split("|");

            el_ymm_year.options.length=1;

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

            el_ymm_year.disabled = false;

         }else{
         }
         
         el_ymm_year.options[0].text = select_year_text;
   });
}


function getYearsByMakeModel(make, model) {

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

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


    $.get("/partfinder/year/make/"+make+"d/model/"+model+"f", function(years){

    	if(years!=""){
        	years = $.trim(years);
            years = years.split("|");

            el_ymm_year.options.length=1;

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

            el_ymm_year.disabled = false;

         }else{
         }
         el_ymm_year.options[0].text = select_year_text;
   });
}


function getModelsByMakeYear(year,make) {

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

	var select_model_text = "";
	select_model_text = el_ymm_model.options[0].text;
	el_ymm_model.options[0].text = "Loading Models...";
	
	$.get("/partfinder/model/year/"+year+"/make/"+make+"f", function(models){

		if(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]);
				if(el_ymm_model.options[i+1].text.toUpperCase()==model_selected.toUpperCase() || models.length == 1){
					el_ymm_model.options[i+1].selected = true;
					if(models.length == 1){
						$('#model').addClass('selected');	
						modelChange(el_ymm_year.value, el_ymm_make.value, el_ymm_model.value);
					}
				}else{
					el_ymm_model.options[i+1].selected = false;
				}
			}
			
			if (model_selected != ''){			
				getSubModelsByYearMakeModel(year, makeid_selected, modelid_selected);		
				
			}
			
			el_ymm_model.disabled = false;
		}else{
			no_model = true;
			el_ymm_model.options[0].text = select_model_text;						
			
						
			if(savecookie == ""){
				$(el_ymm)[0].submit();
			}
			
		}			
		el_ymm_model.options[0].text = select_model_text;

		}
	);

}



function getSubModelsByYearMakeModel(year,make,model) {

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

	var select_submodel_text = "";
	select_submodel_text = el_ymm_submodel.options[0].text;	
	el_ymm_submodel.options[0].text = "Loading Submodels...";		
	
	
	$.get("/partfinder/submodel/year/"+year+"d/make/"+make+"d/model/"+model+"f", function(submodels){

	  	if(submodels != "") {

		  	submodels = $.trim(submodels);
		  	submodels = submodels.split("|");
	
	  		el_ymm_submodel.options.length=1;
	
			for (i=0; i< submodels.length; i++) {
				submodels[i] = submodels[i].split("*");
				el_ymm_submodel.options[i+1] = new Option(submodels[i][0], submodels[i][1]);
				if(el_ymm_submodel.options[i+1].text.toUpperCase()==submodel_selected.toUpperCase()|| submodels.length == 1){
					el_ymm_submodel.options[i+1].selected = true;	
					if(submodels.length == 1){
						submodelChange(el_ymm_year.value, el_ymm_make.value, el_ymm_model.value, el_ymm_submodel.value);				
					}
				}else{
					el_ymm_submodel.options[i+1].selected = false;
				}	
			}

			if (submodel_selected != ''){						
				if(submodels.length != 1){
					getEngineByYearMakeModelSubModel(yearid_selected, makeid_selected, modelid_selected, submodelid_selected)
				}
				
			}
			
			el_ymm_submodel.disabled = false;			
			
		}else {			

					
			if(savecookie == ""){
				$(el_ymm)[0].submit();
			}
				
		}
		el_ymm_submodel.options[0].text = select_submodel_text;
	  }
	);

}


function getEngineByYearMakeModelSubModel(year,make,model,submodel,engine) {

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

	var select_engine_text = "";
	select_engine_text = el_ymm_engine.options[0].text;
	el_ymm_engine.options[0].text = "Loading Engines...";	
	
	$.get("/partfinder/engine/year/"+year+"d/make/"+make+"d/model/"+model+"d/submodel/"+submodel+"f", function(engines){
	    
	  	if(engines != "") {
	  
		  	engines = $.trim(engines);
		  	engines = engines.split("|");
	
	  		el_ymm_engine.options.length=1;
	
			for (i=0; i<engines.length; i++) {
				engines[i] = engines[i].split("*");
				el_ymm_engine.options[i+1] = new Option(engines[i][0], engines[i][1]);

				if(el_ymm_engine.options[i+1].text.toUpperCase()==engine_selected.toUpperCase() || engines.length == 1){										
					el_ymm_engine.options[i+1].selected = true;		
						el_ymm_engine.disabled = false;			
						if(engines.length == 1){
							if(el_ymm_engine.value != engineid_selected){
								engineChange(el_ymm_year.value, el_ymm_make.value, el_ymm_model.value, el_ymm_submodel.value, el_ymm_engine.value);
							}
						}						
				}else{
					el_ymm_engine.options[i+1].selected = false;
				}		
			}			

			if (engine_selected != ''){			
			
			}
			
			el_ymm_engine.disabled = false;			
			
		}else {

			if(el_ymm_engine.value == '' && engineid_selected == '0' ){ 				engineid_selected = '';
			}
			
						
			if(savecookie == ""){
				el_ymm_engine.options[0].text = select_engine_text;
				$(el_ymm)[0].submit();
			}
					
		}
		el_ymm_engine.options[0].text = select_engine_text;
	  }
	);
}


function ymm_submit() {

	var el_ymm_year 			= document.getElementById("ymm_year");
	var el_ymm_make 			= document.getElementById("ymm_make");
	var el_ymm_model 			= document.getElementById("ymm_model");
	var el_ymm_submodel 		= document.getElementById("ymm_submodel");
	var el_ymm_engine 			= document.getElementById("ymm_engine");
	
	var year_select = true;
	var make_select = true;
	var model_select = true;


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

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

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

	if (!year_select && !make_select && !model_select) {
		alert("You must select a Year 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;
	}


	return true;


}