function FILTER(obj,url,start)
	{
		this.contentObject = obj;	
		this.url = url;
		this.start = start;
		this.arrParam = new Object();		
		this.send = function()
		{
			for (sv in this.arrParam)
			{				
				if (document.getElementById(sv)) this.arrParam[sv] = document.getElementById(sv).value; 	
				else this.arrParam[sv] = this.arrParam[sv];
			}		
		
			var oAjax = new Ajax();
			oAjax.prototype = this;
			oAjax.post(this.url,function()
				{			
					this.prototype.contentObject.innerHTML = this.req.responseText;
					this.prototype.init();
				}
			,this.arrParam);
			this.start();			
		}
		
		this.addParam = function(obj_id)
		{
			if (!this.arrParam[obj_id]) this.arrParam[obj_id] = "";			
		}		
	}