// genera numeros claves aleatorias

void function generarPwd() {

    var Resultado="";
    var Caracter;
    var largo=8;
    var tmpChar;
	var Rnd=0;
	
	Caracter = new Array(37);

    Caracter[0] = "0";
    Caracter[1] = "1";
    Caracter[2] = "2";
    Caracter[3] = "3";
    Caracter[4] = "4";
    Caracter[5] = "5";
    Caracter[6] = "6";
    Caracter[7] = "7";
    Caracter[8] = "8";
    Caracter[9] = "9";
    Caracter[10] = "a";
    Caracter[11] = "b";
    Caracter[12] = "c";
    Caracter[13] = "d";
    Caracter[14] = "e";
    Caracter[15] = "f";
    Caracter[16] = "g";
    Caracter[17] = "h";
    Caracter[18] = "i";
    Caracter[19] = "j";
    Caracter[20] = "k";
    Caracter[21] = "l";
    Caracter[22] = "m";
    Caracter[23] = "n";
    Caracter[24] = "o";
    Caracter[25] = "p";
    Caracter[26] = "q";
    Caracter[27] = "r";
    Caracter[28] = "s";
    Caracter[29] = "t";
    Caracter[30] = "u";
    Caracter[31] = "v";
    Caracter[32] = "w";
    Caracter[33] = "x";
    Caracter[34] = "y";
    Caracter[35] = "z";
    
    while (Resultado.length < largo) {
        Rnd = Math.floor(Math.random() * 35);
        tmpChar = Caracter[Rnd];
	    //alert(tmpChar);
		
		
        //if (Math.random() > 0.5) tmpChar = tmpChar.toUpperCase();
        
        Resultado += tmpChar;
    }
    
    alert(Resultado);
	
}