function initUpdateMenus(){
		 var menus = jQuery(".update");
		 
		 //- load available colours
		 if(menus.length>0){
		 $("#sku_colour_id").load("ajax/ajax.update_sku_fields.php",{pageid: pageid});
		 
		menus.each( function(){
			
			$(this).change( function() {
			
			for(i=0;i<(menus.length);i++){
					if(menus[i].id != $(this).attr("id")){
					
						var ds = "#"+menus[i].id+"_ds";
						//var ds = $("#sku_size_id_ds").attr("id");
					
						var datasource = ($(ds).attr("value"));
					$(menus[i]).load("ajax/ajax.update_sku_fields.php",{id: $(this).attr("id"),value: this.options[this.selectedIndex].value, pageid: pageid, ds:datasource});
					}
				}
						 });
						 });
		
		 }
	}
	
	
	function updateMenu(id,value,pageid,datasource){
		$(menus[i]).load("ajax/ajax.update_sku_fields.php",{id: $(this).attr("id"),value: this.options[this.selectedIndex].value, pageid: pageid, ds:datasource});
	}

	
	
	
	 $(document).ready(function(){
							initUpdateMenus();
							});