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

removeAllOptions(document.results.txtBudget);
addOption(document.results.txtBudget, "", "specify", "");

if(document.results.txtChoose.value == 'buy'){

addOption(document.results.txtBudget,"50000", "£50,000");
addOption(document.results.txtBudget,"55000", "£55,000");
addOption(document.results.txtBudget,"60000", "£60,000");
addOption(document.results.txtBudget,"70000", "£70,000");
addOption(document.results.txtBudget,"80000", "£80,000");
addOption(document.results.txtBudget,"90000", "£90,000");
addOption(document.results.txtBudget,"100000", "£100,000");
addOption(document.results.txtBudget,"125000", "£125,000");
addOption(document.results.txtBudget,"150000", "£150,000");
addOption(document.results.txtBudget,"175000", "£175,000");
addOption(document.results.txtBudget,"200000", "£200,000");
addOption(document.results.txtBudget,"300000", "£300,000");
addOption(document.results.txtBudget,"400000", "£400,000");
addOption(document.results.txtBudget,"500000", "£500,000");
addOption(document.results.txtBudget,"5000000", "£500,000 +");
}
if(document.results.txtChoose.value == 'lease'){
addOption(document.results.txtBudget,"250", "£250");
addOption(document.results.txtBudget,"300", "£300");
addOption(document.results.txtBudget,"350", "£350");
addOption(document.results.txtBudget,"400", "£400");
addOption(document.results.txtBudget,"450", "£450");
addOption(document.results.txtBudget,"500", "£500");
addOption(document.results.txtBudget,"550", "£550");
addOption(document.results.txtBudget,"600", "£600");
addOption(document.results.txtBudget,"700", "£700");
addOption(document.results.txtBudget,"800", "£800");
addOption(document.results.txtBudget,"900", "£900");
addOption(document.results.txtBudget,"1000", "£1,000");
addOption(document.results.txtBudget,"1250", "£1,250");
addOption(document.results.txtBudget,"1500", "£1,500");
addOption(document.results.txtBudget,"1750", "£1,750");
addOption(document.results.txtBudget,"2000", "£2,000");
addOption(document.results.txtBudget,"3000", "£3,000");
addOption(document.results.txtBudget,"4000", "£4,000");
addOption(document.results.txtBudget,"5000", "£5,000");
}


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

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);
}