function fillSubCat3(){ 
 // this function is used to fill the SubCat3 list on load
addOption(document.drop_list.SubCat3,"1", "944 Spec");
addOption(document.drop_list.SubCat3,"2", "986 Spec");
addOption(document.drop_list.SubCat3,"3", "American Iron Racing");
addOption(document.drop_list.SubCat3,"4", "Camaro/Mustang Challenge");
addOption(document.drop_list.SubCat3,"5", "Factory Five Challenge");
addOption(document.drop_list.SubCat3,"6", "German Touring Series");
addOption(document.drop_list.SubCat3,"7", "Honda Challenge");
addOption(document.drop_list.SubCat3,"8", "Performance Touring");
addOption(document.drop_list.SubCat3,"9", "Spec E30");
//addOption(document.drop_list.SubCat3,"10", "Spec Focus");
addOption(document.drop_list.SubCat3,"11", "Spec Miata Challenge");
addOption(document.drop_list.SubCat3,"12", "Super Touring");
addOption(document.drop_list.SubCat3,"13", "Super Unlimited");
addOption(document.drop_list.SubCat3,"14", "NASA Time Trial");
}


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);
}