//RUT
ie = (document.all)? true:false
n6 = (document.getElementById)? true:false
var keycode;

function enter_key_trap(e){
    var keyPressed;
    if (document.layers) {
        keyPressed = String.fromCharCode(e.which);
	    } 
	else if (document.all) {
        keyPressed = String.fromCharCode(window.event.keyCode);
    	} 
	else if (document.getElementById) {
        keyPressed = String.fromCharCode(e.keyCode);
    	}
    if ((keyPressed == "\r" || keyPressed == "\n") && (submit_login())) {
        document.implogin.submit();
	    }
	}
function checkRutField(rut){
	var tmpstr = "";
	for ( i=0; i < rut.length ; i++ )
		if ( rut.charAt(i) != ' ' && rut.charAt(i) != '.' && rut.charAt(i) != '-' )
			tmpstr = tmpstr + rut.charAt(i);
	rut = tmpstr;
	largo = rut.length;
	document.form1.rut.value = rut.substring(0,rut.length-1);
	document.form1.dv.value = rut.substring(rut.length-1,rut.length);
// [VARM+]
	tmpstr = "";
	for ( i=0; rut.charAt(i) == '0' ; i++ );
		for (; i < rut.length ; i++ )
			tmpstr = tmpstr + rut.charAt(i);
	rut = tmpstr;
	largo = rut.length;
// [VARM-]
	if ( largo < 2 ){
		alert("Debe ingresar el R.U.T. completo.");
		document.form1.rut_aux.focus();
		document.form1.rut_aux.select();
		return false;
		}
	for (i=0; i < largo ; i++ )	{
		if ( rut.charAt(i) != "0" && rut.charAt(i) != "1" && rut.charAt(i) !="2" && rut.charAt(i) != "3" && rut.charAt(i) != "4" && rut.charAt(i) !="5" && rut.charAt(i) != "6" && rut.charAt(i) != "7" && rut.charAt(i) !="8" && rut.charAt(i) != "9" && rut.charAt(i) !="k" && rut.charAt(i) != "K" )	{
			alert("El valor ingresado no corresponde a un R.U.T válido.");
			document.form1.rut_aux.focus();
			document.form1.rut_aux.select();
			return false;
			}
		}
	var invertido = "";
	for ( i=(largo-1),j=0; i>=0; i--,j++ )
		invertido = invertido + rut.charAt(i);
	var drut = "";
	drut = drut + invertido.charAt(0);
	drut = drut + '-';
	cnt = 0;
	for ( i=1,j=2; i<largo; i++,j++ )
	{
		if ( cnt == 3 )	{
			drut = drut + '.';
			j++;
			drut = drut + invertido.charAt(i);
			cnt = 1;
			}
		else{
			drut = drut + invertido.charAt(i);
			cnt++;
			}
	}
	invertido = "";
	for ( i=(drut.length-1),j=0; i>=0; i--,j++ )
		invertido = invertido + drut.charAt(i);
	document.form1.rut_aux.value = invertido;
	if ( checkDV(rut) )
		return true;
	return false;
	}
function checkDV( crut ){
	largo = crut.length;
	if ( largo < 2 ){
		alert("Debe ingresar el R.U.T. completo.");
		document.form1.rut_aux.focus();
		document.form1.rut_aux.select();
		return false;
		}
	if ( largo > 2 )
		rut = crut.substring(0, largo - 1);
	else
		rut = crut.charAt(0);
	dv = crut.charAt(largo-1);
	checkCDV( dv );
	if ( rut == null || dv == null )
		return 0;
	var dvr = '0';
	suma = 0;
	mul = 2;
	for (i= rut.length -1 ; i >= 0; i--){
		suma = suma + rut.charAt(i) * mul;
		if (mul == 7)
			mul = 2;
		else
			mul++;
		}
	res = suma % 11;
	if (res==1)
		dvr = 'k';
	else if (res==0)
		dvr = '0';
	else{
		dvi = 11-res;
		dvr = dvi + "";
		}
	if ( dvr != dv.toLowerCase() ){
		alert("EL R.U.T. es incorrecto.");
		document.form1.rut_aux.focus();
		return false;
		}
	return true;
	}
function checkCDV( dvr ){
	dv = dvr + "";
	if ( dv != '0' && dv != '1' && dv != '2' && dv != '3' && dv != '4' && dv != '5' && dv != '6' && dv != '7' && dv != '8' && dv != '9' && dv != 'k'  && dv != 'K')	{
		alert("Debe ingresar un dígito verificador válido.");
		document.form1.rut_aux.focus();
		document.form1.rut_aux.select();
		return false;
		}
	return true;
	}
function valida() {
	rut_val = document.form1.rut_aux.value;
	if ( rut_val.length == 0 ) 	{
		alert( "Ingrese el R.U.T. de la Empresa");
		document.form1.rut_aux.focus();
		return;
		}
	if ( !checkRutField(document.form1.rut_aux.value) )	{	
		return;
		}
	var tmpstr = "";	
	for ( i=0; i < rut_val.length ; i++ )
		if ( rut_val.charAt(i) != ' ' && rut_val.charAt(i) != '.' && rut_val.charAt(i) != '-' )
			tmpstr = tmpstr + rut_val.charAt(i);
	rut_val = tmpstr;
	rut_valor = rut_val.substring(0,rut.length);
	document.form1.rut.value = rut_val.substring(0,rut.length);	
	document.form1.dv.value = rut_val.substring(rut.length,rut.length+1);
	//document.form1.rut_aux.value = "";
	// if(CheckFields(document.form1.USR.value,document.form1.PWD.value))	
	// {
		document.form1.submit();
	//	}
	//else	{
	//	return;
	//	}
	}
function CheckRutDigito(rut, digito) {
  	var dvr = '0'
  	suma = 0
  	mult = 2
  	for ( i = rut.length - 1 ; i >= 0 ; i -- ) {
    	suma = suma + rut.charAt(i) * mult
    	if ( mult == 7 )
    		mult = 2
    	else
      		mult ++
  		}
  	res = suma % 11
  	if ( res == 1 )
    	dvr = 'k'
  	else {
    	if ( res == 0 )
    	  	dvr = '0'
    	else {
      		dvi = 11 - res
      		dvr = dvi + ""
    		}
  		}
	if ( dvr != digito.toLowerCase() )
    	return false;
  	return true;
	}
function keyDown(e) {
	if(ie){
		keycode = event.keyCode
		if(keycode == "13"){
			valida();
			//document.forms.fmr1.but_hidden.value = document.forms.fmr1.buscar.value
			//document.forms.fmr1.submit();
			}
		}
	else if(n6){
		keycode = e.which;
		if(keycode == "13"){
			valida();
		//document.forms.fmr1.but_hidden.value = document.forms.fmr1.buscar.value
		//document.forms.fmr1.submit();
			}
		}
	}
document.onkeydown = keyDown;
//-->