function fillCategory(){ 
 // this function is used to fill the category list on load
//addOption(document.drop_list.Category,"CALIFORNIA", "CALIFORNIA");
//addOption(document.drop_list.Category,"NEW MEXICO", "NEW MEXICO");
addOption(document.drop_list.Category,"OKLAHOMA", "OKLAHOMA");
addOption(document.drop_list.Category,"TEXAS", "TEXAS");
}

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

removeAllOptions(document.drop_list.SubCat3);
addOption(document.drop_list.SubCat3, "City", "City", "");
document.drop_list.SubCat3.disabled = false;


if(document.drop_list.Category.value == 'NEW MEXICO'){
addOption(document.drop_list.SubCat3,"5", "Albuquerque");
}

if(document.drop_list.Category.value == 'OKLAHOMA'){
addOption(document.drop_list.SubCat3,"6", "Midwest City");
addOption(document.drop_list.SubCat3,"7", "Oklahoma City");
addOption(document.drop_list.SubCat3,"8", "Tulsa");
}

if(document.drop_list.Category.value == 'TEXAS'){
addOption(document.drop_list.SubCat3,"1", "Austin");
addOption(document.drop_list.SubCat3,"10", "College Station");
addOption(document.drop_list.SubCat3,"2", "Dallas");

addOption(document.drop_list.SubCat3,"9", "Galveston");

addOption(document.drop_list.SubCat3,"3", "Houston");
addOption(document.drop_list.SubCat3,"4", "San Antonio");
}
//end subcat3
}




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);
}