function fillMake(){ 
 // this function is used to fill the category list on load
addOption(document.add['data.make'], "", "", "");
addOption(document.add['data.make'], "ACURA", "ACURA", "");
addOption(document.add['data.make'], "AUDI", "AUDI", "");
addOption(document.add['data.make'], "BMW", "BMW", "");
addOption(document.add['data.make'], "BUICK", "BUICK", "");
addOption(document.add['data.make'], "CADILLAC", "CADILLAC", "");
addOption(document.add['data.make'], "CHEVROLET", "CHEVROLET", "");
addOption(document.add['data.make'], "CHRYSLER", "CHRYSLER", "");
addOption(document.add['data.make'], "DAEWOO", "DAEWOO");
addOption(document.add['data.make'], "DAIHATSU", "DAIHATSU", "");
addOption(document.add['data.make'], "DATSUN", "DATSUN", "");
addOption(document.add['data.make'], "DODGE", "DODGE", "");
addOption(document.add['data.make'], "EAGLE", "EAGLE", "");
addOption(document.add['data.make'], "FORD", "FORD", "");
addOption(document.add['data.make'], "GEO", "GEO", "");
addOption(document.add['data.make'], "GMC", "GMC", "");
addOption(document.add['data.make'], "HONDA", "HONDA", "");
addOption(document.add['data.make'], "HUMMER", "HUMMER", "");
addOption(document.add['data.make'], "HYUNDAI", "HYUNDAI", "");
addOption(document.add['data.make'], "INFINITI", "INFINITI", "");
addOption(document.add['data.make'], "ISUZU", "ISUZU", "");
addOption(document.add['data.make'], "JAGUAR", "JAGUAR", "");
addOption(document.add['data.make'], "JEEP", "JEEP", "");
addOption(document.add['data.make'], "KIA", "KIA", "");
addOption(document.add['data.make'], "LANDROVER", "LANDROVER", "");
addOption(document.add['data.make'], "LEXUS", "LEXUS", "");
addOption(document.add['data.make'], "LINCOLN", "LINCOLN", "");
addOption(document.add['data.make'], "MAZDA", "MAZDA", "");
addOption(document.add['data.make'], "MERCEDES", "MERCEDES", "");
addOption(document.add['data.make'], "MERCURY", "MERCURY", "");
addOption(document.add['data.make'], "MERKUR", "MERKUR", "");
addOption(document.add['data.make'], "MINI", "MINI", "");
addOption(document.add['data.make'], "MITSUBISHI", "MITSUBISHI", "");
addOption(document.add['data.make'], "NISSAN", "NISSAN", "");
addOption(document.add['data.make'], "OLDSMOBILE", "OLDSMOBILE", "");
addOption(document.add['data.make'], "PLYMOUTH", "PLYMOUTH", "");
addOption(document.add['data.make'], "PONTIAC", "PONTIAC", "");
addOption(document.add['data.make'], "PORSCHE", "PORSCHE", "");
addOption(document.add['data.make'], "SAAB", "SAAB", "");
addOption(document.add['data.make'], "SATURN", "SATURN", "");
addOption(document.add['data.make'], "SCION", "SCION", "");
addOption(document.add['data.make'], "SMART", "SMART", "");
addOption(document.add['data.make'], "SUBARU", "SUBARU", "");
addOption(document.add['data.make'], "SUZUKI", "SUZUKI", "");
addOption(document.add['data.make'], "TOYOTA", "TOYOTA", "");
addOption(document.add['data.make'], "VOLKSWAGEN", "VOLKSWAGEN", "");
addOption(document.add['data.make'], "VOLVO", "VOLVO", "");
}

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

removeAllOptions(document.drop_list.SubCat);
addOption(document.drop_list.SubCat, "", "SubCat", "");

if(document.drop_list.Category.value == 'Fruits'){
addOption(document.drop_list.SubCat,"Mango", "Mango");
addOption(document.drop_list.SubCat,"Banana", "Banana");
addOption(document.drop_list.SubCat,"Orange", "Orange");
}
if(document.drop_list.Category.value == 'Games'){
addOption(document.drop_list.SubCat,"Cricket", "Cricket");
addOption(document.drop_list.SubCat,"Football", "Football");
addOption(document.drop_list.SubCat,"Polo", "Polo", "");
}
if(document.drop_list.Category.value == 'Scripts'){
addOption(document.drop_list.SubCat,"PHP", "PHP");
addOption(document.drop_list.SubCat,"ASP", "ASP");
addOption(document.drop_list.SubCat,"Perl", "Perl");
}

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

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);
}