function rollover(name,state) {
	if (state==1) {
		document.getElementById(name).src = "/media/images/"+name+"_on.gif";
	} else {
		document.getElementById(name).src = "/media/images/"+name+"_off.gif";
	}
}

function rollover_img(imgname,filename) {
    document.images[imgname].src = "/media/images/"+filename;
}

function MM_preloadImages() { //v3.0
    var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}


/**
Sets focus to the first element of the first form
*/

function setFormFocus() {
    if (document.forms.length > 0) {
        var field = document.forms[0];
        for (i = 0; i < field.length; i++) {
            if ((field.elements[i].type == "text") || (field.elements[i].type == "textarea") || (field.elements[i].type.toString().charAt(0) == "s")) {
                document.forms[0].elements[i].focus();
                break;
            }
        }
    }
}

/**
Loads the previous page.
*/
function cancel() {
    history.go(-1);
}

function deletePrompt(url) {
    var ok;
    ok = confirm('Are you sure you want to delete this item? \n\nClick OK to continue or CANCEL to abort.');
    if (ok) {
        window.location = url;
        return true;    // Should never reach here
    } else {
        return false;
    }
}

function spawn(url, nameW, w, h, s, r, m, t, st, l, d) {
	x4 = screen.width/2 - (w/2);
	y4 = screen.height/2 - (h/2);
	win=window.open(url, nameW, 'height='+h+',width='+w+',scrollbars='+s+',resizable='+r+',menubar='+m+',toolbar='+t+',status='+st+',location='+l+',directories='+d+',left=' + x4 + ',top=' + y4 + '');
	win.opener = self;
	if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}

function checkAll(field){
    for (i = 0; i < field.length; i++)
	field[i].checked = true ;
}

function uncheckAll(field){
    for (i = 0; i < field.length; i++)
	field[i].checked = false ;
}