function initHighlight() {
    if (!document.getElementsByTagName){ return; }
    var allfields = document.getElementsByTagName("input");

    // loop through all input tags and add events
    for (var i=0; i<allfields.length; i++){
        var field = allfields[i];
		var fieldvalue = field.value;
		
        if ((field.getAttribute("type") == "text") || (field.getAttribute("type") == "password") ) {
            field.onfocus = function () {this.className = 'highlightActiveField'; this.select();}
            field.onblur = function () {
            	this.className = 'highlightInactiveField'; 
            	if (this.value == "") {
            		//this.value = fieldvalue;
            	}
			}
        }
    }
}

// Nifty function to add onload events without overwriting
// ones already there courtesy of the lovely and talented
// Simon Willison http://simon.incutio.com/
function addLoadEvent(func) {   
    var oldonload = window.onload;
    if (typeof window.onload != 'function'){
        window.onload = func;
    } else {
        window.onload = function(){
        oldonload();
        func();
        }
    }
}

addLoadEvent(initHighlight);