function fillCategory(){ 
 // this function is used to fill the category list on load
addOption(document.frm_booking.np, "Mumbai", "Mumbai", "");
addOption(document.frm_booking.np, "Delhi", "Delhi", "");
addOption(document.frm_booking.np, "Gurgaon", "Gurgaon", "");
addOption(document.frm_booking.np, "Bangalore", "Bangalore", "");
addOption(document.frm_booking.np, "Pune", "Pune", "");
addOption(document.frm_booking.np, "Hyderabad", "Hyderabad", "");
addOption(document.frm_booking.np, "Chennai", "Chennai", "");
addOption(document.frm_booking.np, "Noida", "Noida", "");
addOption(document.frm_booking.np, "Goa", "Goa", "");
}

function SelectNp(){
// ON selection of category this function will work
removeAllOptions(document.frm_booking.rt);
if(document.frm_booking.np.value == 'Mumbai'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Kandivali East, Lokhandwala", "Kandivali East, Lokhandwala");
addOption(document.frm_booking.rt,"Bhakti Park, Sion/Dadar", "Bhakti Park, Sion/Dadar");
addOption(document.frm_booking.rt,"Navi Mumbai", "Navi Mumbai");
addOption(document.frm_booking.rt,"Andheri East, Marol", "Andheri East, Marol");
addOption(document.frm_booking.rt,"Andheri West, Lokhandwala", "Andheri West, Lokhandwala");
}
if(document.frm_booking.np.value == 'Delhi'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Mathura Road, South of Delhi", "Mathura Road, South of Delhi");
}
if(document.frm_booking.np.value == 'Gurgaon'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Essel Towers, M.G.Road", "Essel Towers, M.G.Road");
addOption(document.frm_booking.rt,"Golf Course Road", "Golf Course Road");
}
if(document.frm_booking.np.value == 'Bangalore'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Diamond District", "Diamond District");
addOption(document.frm_booking.rt,"Richmond Town", "Richmond Town");
addOption(document.frm_booking.rt,"Langford Town", "Langford Town");
}
if(document.frm_booking.np.value == 'Pune'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Koregaon IT Park at Ghorpadi", "Koregaon IT Park at Ghorpadi");
}
if(document.frm_booking.np.value == 'Hyderabad'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Jubilee Hills, Close to Hitech City, Madhapur", "Jubilee Hills, Close to Hitech City, Madhapur");
}
if(document.frm_booking.np.value == 'Chennai'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Ashok Pillar Main Road, in K K nagar", "Ashok Pillar Main Road, in K K nagar");
}
if(document.frm_booking.np.value == 'Noida'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"c", "Comming Soon");
}
if(document.frm_booking.np.value == 'Goa'){
addOption(document.frm_booking.rt,"", "Select");
addOption(document.frm_booking.rt,"Panaji", "Panaji");
}
}


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);
}