Placeholder Support for old browsers using JavaScript

gistfile1.js

// Placeholder Support for old browsers using JavaScript (without jQuery)
// Test on IE6+, Firefox, Chrome
if( 'placeholder' in document.createElement('input') == false ){
    var inputs = document.getElementsByTagName('input');
    for(var i = 0 ; i < inputs.length ; i++ ){
        var input = inputs[i], placeholder = input.getAttribute('placeholder'),
        textColor = input.style.color;
        if(placeholder){
            input.value = placeholder;
            input.style.color = '#aaa';

            if ( document.addEventListener ){
                input.addEventListener('focus',function(){
                    if( this.value === this.getAttribute('placeholder') ){
                        this.value = '';
                        this.style.color = textColor;
                    }
                });
                input.addEventListener('blur',function(){
                    if( !this.value ){
                        this.value = this.getAttribute('placeholder');
                        this.style.color = '#aaa';
                    }
                });
            }
            else{
                input.attachEvent('onfocus',function(e){
                    me = window.event.srcElement;
                    if( me.value === me.getAttribute('placeholder') ){
                        me.value = '';
                        me.style.color = textColor;
                    }
                });
                input.attachEvent('onblur',function(){
                    me = window.event.srcElement;
                    if( !me.value ){
                        me.value = me.getAttribute('placeholder');
                        me.style.color = '#aaa';
                    }
                });
            }
        }
    }
}