function colorear(obj,col){obj.style.backgroundColor=col}
	function irA(x){location.href=x}
	
	function eventos(){

	}

	var nav4 = window.Event ? true : false;
	function soloChar(evt){ 
	// NOTE: Backspace = 8, Enter = 13, '0' = 48, '9' = 57 
	var key = nav4 ? evt.which : evt.keyCode; 
	return (key != 34 && key != 39);
	}