function activatePlaceholders() {
    var detect = navigator.userAgent.toLowerCase(); 
    if (detect.indexOf("safari") > 0) return false;
    var inputs = document.getElementsByTagName("input");
    for (var i = 0; i < inputs.length; i++) {
        if (inputs[i].getAttribute("type") == "text") {
            replacePlaceHolder(inputs[i]);
        }
    }
    var tareas = document.getElementsByTagName("textarea");
    for (var i=0;i<tareas.length;i++) {
        replacePlaceHolder(tareas[i]);
    }
}
function replacePlaceHolder(obj) { 
    
    if (obj.getAttribute("placeholder") && obj.getAttribute("placeholder").length > 0) {
        obj.value = obj.getAttribute("placeholder");
        obj.onclick = function () {
            if (this.value == this.getAttribute("placeholder")) {
                this.value = "";
            }
            return false;
        }
    }
    obj.onblur = function() {
        if (this.value.length < 1) {
            this.value = this.getAttribute("placeholder");
        }
    }
}
window.onload = function () {
    //activatePlaceholders();
}