function inStr(car, chaine) {
    var i = 0;
    var j = 0;
    loop = 0;
    for(j=0;j<=(car.length-1);j++) {
        for(i=loop;i<=(chaine.length-1);i++) {
            if (chaine.charAt(i) == car.charAt(j)) {
                if ((j+1)>=car.length) {
                    return (i-car.length+1);
                }
                loop = i + 1;
                i = chaine.length;
            }
        }
    }
    return -1;
}

function isGoodString(chaine) {
    if ((inStr('\\', chaine) >= 0) || (inStr('"', chaine) >= 0) || (inStr('#', chaine) >= 0) || (inStr('$', chaine) >= 0) || (inStr('/', chaine) >= 0) || (inStr('>', chaine) >= 0) || (inStr('<', chaine) >= 0)) {
        return false;
    }
    return true;
}

function createUrlFromForm(theform) { 
    if (theform.length >= 1) {
        chaine = theform.elements[0].name + '=' + escape(theform.elements[0].value);
    }
    for (i=1;i<theform.length;i++) {
        chaine += '&' + theform.elements[i].name + '=' + escape(theform.elements[i].value);
    }
    return chaine;    
}