function fillCategory(){ 
 // this function is used to fill the category list on load
addOption(document.drop_list.State, "Colorado", "Colorado", "");
addOption(document.drop_list.State, "Utah", "Utah", "");
addOption(document.drop_list.State, "NewMexico", "NewMexico", "");
}

function SelectSkiArea(){
// ON selection of category this function will work

removeAllOptions(document.drop_list.SkiArea);


addOption(document.drop_list.SkiArea, "", "SkiArea", "");

if(document.drop_list.State.value == 'Colorado'){

addOption(document.drop_list.SkiArea,"Ajax","Aspen(Ajax)");
addOption(document.drop_list.SkiArea,"ABasin","ArapahoeBasin");
addOption(document.drop_list.SkiArea,"AspenHighlands","AspenHighlands");
addOption(document.drop_list.SkiArea,"BeaverCreek","BeaverCreek");
addOption(document.drop_list.SkiArea,"Breckenridge","Breckenridge");
addOption(document.drop_list.SkiArea,"Buttermilk","Buttermilk");
addOption(document.drop_list.SkiArea,"CopperMountain","CopperMountain");
addOption(document.drop_list.SkiArea,"CrestedButte","CrestedButte");
addOption(document.drop_list.SkiArea,"Durango","Durango");
addOption(document.drop_list.SkiArea,"Eldora","Eldora");
addOption(document.drop_list.SkiArea,"Keystone","Keystone");
addOption(document.drop_list.SkiArea,"Loveland","Loveland");
addOption(document.drop_list.SkiArea,"Monarch","Monarch");
addOption(document.drop_list.SkiArea,"Powderhorn","Powderhorn");
addOption(document.drop_list.SkiArea,"SilvertonMountain","SilvertonMountain");
addOption(document.drop_list.SkiArea,"SkiCooper","SkiCooper");
addOption(document.drop_list.SkiArea,"Snowmass","Snowmass");
addOption(document.drop_list.SkiArea,"SolVista","SolVista");
addOption(document.drop_list.SkiArea,"Steamboat","Steamboat");
addOption(document.drop_list.SkiArea,"Sunlight","Sunlight");
addOption(document.drop_list.SkiArea,"Telluride","Telluride");
addOption(document.drop_list.SkiArea,"Vail","Vail");
addOption(document.drop_list.SkiArea,"WinterPark","WinterPark");
addOption(document.drop_list.SkiArea,"WolfCreek","WolfCreek");

}


if(document.drop_list.State.value == 'Utah'){

addOption(document.drop_list.SkiArea,"Alta","Alta");
addOption(document.drop_list.SkiArea,"BeaverMountain","BeaverMountain");
addOption(document.drop_list.SkiArea,"BrianHead","BrianHead");
addOption(document.drop_list.SkiArea,"Brighton","Brighton");
addOption(document.drop_list.SkiArea,"DeerValley","DeerValley");
addOption(document.drop_list.SkiArea,"ParkCity","ParkCity");
addOption(document.drop_list.SkiArea,"PowderMountain","PowderMountain");
addOption(document.drop_list.SkiArea,"Snowbasin","Snowbasin");
addOption(document.drop_list.SkiArea,"Snowbird","Snowbird");
addOption(document.drop_list.SkiArea,"Solitude","Solitude");
addOption(document.drop_list.SkiArea,"Sundance","Sundance");
addOption(document.drop_list.SkiArea,"TheCanyons","TheCanyons");
}


if(document.drop_list.State.value == 'NewMexico'){

addOption(document.drop_list.SkiArea,"AngelFire","AngelFire");
addOption(document.drop_list.SkiArea,"Pajarito","Pajarito");
addOption(document.drop_list.SkiArea,"RedRiver","RedRiver");
addOption(document.drop_list.SkiArea,"SandiaPeak","SandiaPeak");
addOption(document.drop_list.SkiArea,"Sipapu","Sipapu");
addOption(document.drop_list.SkiArea,"SkiApache","SkiApache");
addOption(document.drop_list.SkiArea,"SkiSantaFe","SkiSantaFe");
addOption(document.drop_list.SkiArea,"Taos","Taos");
}

}
////////////////// 

function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}


function addOption(selectbox, value, text )
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;

	selectbox.options.add(optn);
}