var item_name_value;
window.onload = function(){
	item_name_value = document.getElementById('item_name').value;
}
function AddColor(obj){
	if(typeof(obj) != 'undefind'){
		var colorText = obj.options[obj.selectedIndex].text;
		document.getElementById('item_name').value = item_name_value + ' ' + colorText;
	}
}