function addLoadEvent(func) {

	var oldonload = window.onload;

	if (typeof window.onload != 'function') {

		window.onload = func;

	} else {

		window.onload = function() {

			oldonload();

			func();

		}

	}

}



function addNavBehavior() {

	var nav = Array(document.getElementById("home"), 

		document.getElementById("ourwork"), 

		document.getElementById("products"), 

		document.getElementById("company"), 

		document.getElementById("contactus"));

		

	for(var i = 0; nav[i]; i++) {

		nav[i].onmouseover = function() { 

			this.className = "hover";

		}

		nav[i].onmouseout = function() {

			this.className = "";

		}

	}

}



addLoadEvent(addNavBehavior);



function clearField(thefield) {

	if (thefield.defaultValue==thefield.value)

		thefield.value = ""

}

function swapField() {

		document.getElementById("passfield").innerHTML = "<input id='password' name='vpd_password' type='password'>"

		document.getElementById("username").focus()

		document.getElementById("password").focus()

}