// JavaScript Document
function Controlar_Fechas(e){
	if(window.event) // IE
	{
		keynum = e.keyCode;
	}else if(e.which) // Netscape/Firefox/Opera
  	{
  		keynum = e.which;
	}
	
	//alert(keynum);
	
	if (keynum >= 47 && keynum <= 57){
		return true;
	}else{
		alert("Solo se permiten números y guiones");
		return false;
	}
}

function openWindow(pag,w,h,sc,resiz){
	l = (screen.width) ? (screen.width-w)/2 : 0;
	t = (screen.height) ? (screen.height-h)/2 : 0;
	hwnd = window.open(pag,'asociadas','scrollbars='+sc+',resizable='+resiz+',width='+w+',height='+h+',top='+t+',left='+l+',status=true')
}