var Uniqid = new Class({
	initialize : function(){
		this.uniqs = [];
	},
	
	get : function(){
	 	var newDate = new Date;
	    var id = newDate.getTime();
	    while ($chk(this.uniqs['ids_'+id])){
	    	var newDate = new Date;
	        var id = newDate.getTime();
	    }
	    this.uniqs['ids_'+id] = 1;
	    return id;  
	}
});
var uniqid = new Uniqid();