document.onmouseover = function ( e ) {   
if ( !e ) e = window.event;   
var el = e.target ? e.target : e.srcElement;   
while ( el != null && el.tagName != "A" ) el = el.parentNode;   
if ( el == null ) return;   
if ( e.preventDefault ) e.preventDefault();   
else e.returnValue = true;};


function numbersonly(myfield, e, dec)
{
var key;
var keychar;

if (window.event)
   key = window.event.keyCode;
else if (e)
   key = e.which;
else
   return true;
keychar = String.fromCharCode(key);

// control keys
if ((key==null) || (key==0) || (key==8) ||
    (key==9) || (key==13) || (key==27) )
   return true;

// numbers
else if ((("0123456789").indexOf(keychar) > -1))
   return true;

// decimal point jump
else if (dec && (keychar == "."))
   {
   myfield.form.elements[dec].focus();
   return false;
   }
else
   return false;
}



function getObj(name){
	if(document.getElementById){
		return document.getElementById(name);
	}else if(document.all){
		return document.all[name];
	}
}




function popWin(file, newLoc, newWidth, newHeight) {
    popupWindow=window.open(file,newLoc,'width='+newWidth+',height='+newHeight+',left='+((screen.width / 2)-(newWidth/2))+',top='+((screen.height /2)-(newHeight/2))+',screenX='+((screen.width / 2)-(newWidth/2))+',screenY='+((screen.height / 2)-(newHeight/2))+',directories=0,fullscreen=0,location=0,menubar=0,scrollbars=1,resizable=1,status=1,toolbar=0');
   if (popupWindow.opener == null) popupWindow.opener = self;
}



function limitText(limitField, limitNum) {
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	} 
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


// favorites

function displayfav(ret){
//alert(ret);
frames['update'].location.href = "update.php";
}

function addtofav(iid){
x_addtofav(iid,displayfav);
}

function removefromfav(iid){
x_removefromfav(iid,displayfav);
}

function makefav(iid){	
iobj = getObj("favbut1"+iid);
isrc = iobj.src;
iconname = isrc.substring(isrc.lastIndexOf('/')+1);
if(iconname=="plus.png"){
iobj.src = "images/nav/minus.png";
iobj.alt = "remove from favorites";
addtofav(iid);
}else{
iobj.src = "images/nav/plus.png";
iobj.alt = "add to favorites";
removefromfav(iid);
}
}

function clearfav(){
x_clearfav();
window.location.href = "favorites.php";
}