// Global functions

var timer = "";
var openMenu = null;

/* ==== Switches the image headers and drops down the menus ==== */
function dropMenu(id,offset) {
	var id;
	var idSub = id + 'Sub';
	var offset;
	
	//image header swapping
	var imgName = document.getElementById(id).id;
	document.getElementById(id).src = '/images/nav/' + imgName + '_on.gif';

	if (document.getElementById && offset != 0) {
		if (openMenu != null && idSub == openMenu) {
			window.clearTimeout(timer);
		}
			
		//mac positioning
		platform=navigator.userAgent;
		platform.indexOf("Mac")<1?offset=offset:offset-=13;
			
		//get container position in order to draw menus correctly along x-axis
   		var divobj = MM_findObj('container');    
		document.getElementById(idSub).style.left = divobj.offsetLeft + offset + 'px';

		document.getElementById(idSub).style.visibility = 'visible';
		openMenu = idSub;
	}
} // end dropMenu()


/* ==== Starts the menu closing and image switching process ==== */
function closeMenu(id,offset,active){
	var id;
	var idSub = id + 'Sub';
	var offset;
	var active;

	if (active == 'off') {
		var imgName = document.getElementById(id).id;
		document.getElementById(id).src = '/images/nav/' + imgName + '_off.gif';
	}

	if (document.getElementById && offset != 0) {
		var funcToCall = "closeMenu2('"+idSub+"')";
		timer = setTimeout(funcToCall, 50);
	}
} // end closeMenu()


/* ==== closeMenu does the close if timeout hasn't been cleared ==== */
function closeMenu2(id) {
	if (document.getElementById) {
    	document.getElementById(id).style.visibility = 'hidden';
	}
} // end closeMenu2()


/* ==== This finds where the container file is in order to position the drop down menus ==== */
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_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];}}
}

// macromedia code, kept for markets and services image swapping
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];}
}

// macromedia code, kept for markets and services image swapping
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;
  }
}

// pop a new window
function popWindow() {
	var args;
	args=popWindow.arguments;
    var popme;
	popme=window.open(args[0],'corvelpop','height=410,width=550,left=40,top=40,screenX=40,screenY=40,toolbar=no,location=no,scrollbars=yes,menubar=no,resizable,status');
	popme.focus();
}