var niceform = document.getElementById('niceform'); 
    var textboxes = new Array();
    var inputs = new Array();
    var texts = new Array(); 
    var textareas = new Array();

    var imagesPath = "images/";
    
    function getElements() {
    	
    	textboxes = niceform.getElementsByTagName("input");
    	
	    for (var nf = 0; nf < textboxes.length; nf++) 
	    {
			inputs.push(textboxes[nf]);
	    }
    }
    
    function separateElements() 
    {
        var t = 0; 
	    for (var q = 0; q < inputs.length; q++) {
		    if((inputs[q].type == "text") || (inputs[q].type == "password")) {texts[t] = inputs[q]; ++t;}
	    }
    }

    function replaceTexts() {
        
	    for(var q = 0; q < texts.length; q++) {
		    txtLeft = document.createElement('img'); txtLeft.src = imagesPath + "input_left.jpg"; txtLeft.className = "inputCorner";
		    txtRight = document.createElement('img'); txtRight.src = imagesPath + "input_right.jpg"; txtRight.className = "inputCorner";
		    texts[q].parentNode.insertBefore(txtLeft, texts[q]);
		    texts[q].parentNode.insertBefore(txtRight, texts[q].nextSibling);
		    texts[q].className = "textinput";
	    }
    }
    
    getElements();
	separateElements();
	replaceTexts();