<!--
var practiceImages=new Array();
function preload(){
for (x=0; x<preload.arguments.length; x++){
practiceImages[x]=new Image();
practiceImages[x].src=preload.arguments[x];
}
}
preload("http://www.unl.edu/nac/images/practices/alleycropping1.jpg","http://www.unl.edu/nac/images/practices/forestfarming1.jpg","http://www.unl.edu/nac/images/practices/riparianforestbuffers1.jpg","http://www.unl.edu/nac/images/practices/silvopasture1.jpg","http://www.unl.edu/nac/images/practices/windbreaks1.jpg","http://www.unl.edu/nac/images/practices/specialapplications1.jpg");
// -->


<!--
var newPractice=new Array();
newPractice[0]="http://www.unl.edu/nac/images/practices/alleycropping1.jpg";
newPractice[1]="http://www.unl.edu/nac/images/practices/forestfarming1.jpg";
newPractice[2]="http://www.unl.edu/nac/images/practices/riparianforestbuffers1.jpg";
newPractice[3]="http://www.unl.edu/nac/images/practices/silvopasture1.jpg";
newPractice[4]="http://www.unl.edu/nac/images/practices/windbreaks1.jpg";
newPractice[5]="http://www.unl.edu/nac/images/practices/specialapplications1.jpg";

function changeImage(i) {
document.getElementById('practicephoto').src=newPractice[i];
}
//-->


<!--
function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
{alert(alerttxt);return false}
else {return true}
}
}

function validate_email(field,alerttxt)
{
with (field)
{
apos=value.indexOf("@")
dotpos=value.lastIndexOf(".")
if (apos<1||dotpos-apos<2) 
{alert(alerttxt);return false}
else {return true}
}
}

function validate_contact(thisform)
{
with (thisform)
{
if (validate_required(firstname,"Please include your first name.")==false)
{firstname.focus();return false}
if (validate_required(lastname,"Please include your last name.")==false)
{lastname.focus();return false}
if (validate_email(email,"Please include a valid e-mail address.")==false)
{email.focus();return false}
if (validate_required(comments,"Please include comments.")==false)
{comments.focus();return false}
}

}

function validate_order(thisform)
{
with (thisform)
{
if (validate_required(firstname,"Please include your first name.")==false)
{firstname.focus();return false}
if (validate_required(lastname,"Please include your last name.")==false)
{lastname.focus();return false}
if (validate_required(address1,"Please include your address.")==false)
{address1.focus();return false}
if (validate_required(city,"Please include your city.")==false)
{city.focus();return false}
if (validate_required(state,"Please include your state.")==false)
{state.focus();return false}
if (validate_required(zip,"Please include your zip code.")==false)
{zip.focus();return false}
if (validate_required(country,"Please include your country.")==false)
{country.focus();return false}
if (validate_email(email,"Please include a valid e-mail address.")==false)
{email.focus();return false}
}

}
//-->