function initialize_tag(oSelect, catType, isSelected, arrayTag)
{
//	create_category_obj(catType);
	initial_tag_select(oSelect, catType, isSelected, arrayTag);
}

function initial_tag_select(oSelect, catType, isSelected, arrayTag)
{
	// initialize select control of category
	var i,k=0,nCount,checked=0;
	var nCount = arrayTag.length;
	oSelect.length=0;
	if(isSelected == 0){
		oSelect.options[0]=new Option("All", 0);
		k = 1;
		for(i=0;i<nCount;i++)
		{
			if(catType == arrayTag[i].type)
			{
				oSelect.options[k]=new Option(arrayTag[i].label, arrayTag[i].value);
				k++;
			}
		}
	}
	else{
		oSelect.options[0]=new Option("All", 0);
		k = 1;
		for(i=0;i<nCount;i++)
		{
			if(catType == arrayTag[i].type)
			{
				if(isSelected == arrayTag[i].value){
					checked = k;
				}
				oSelect.options[k]=new Option(arrayTag[i].label, arrayTag[i].value);
				k++;
			}
		}
	}
	
	// select first item
	oSelect.selectedIndex=checked;
}

function create_tag_obj(catType){
	var url = "/techdiscount/td-cateslist.php";
	var pars = "cattype=" + catType;
	var myAjax = new Ajax.Request( url, { method: 'get', parameters: pars, evalScripts: true, onComplete: returnCategoryObj});
}

function returnCategoryObj(originalRequest){
	return originalRequest.responseText;
}