// site_javascript.js
// defines commonly used javascript functions throughout the site

function suppressEnter( e ) {

  var characterCode;
  if ( e && e.which ) {
    characterCode = e.which;
  } else {
    characterCode = event.keyCode;
  }

  // Enter Key
  if ( characterCode == 13 ) { 
      return false; 
  }
}

function getPageTitle() {
  var pageTitle = document.title;
  pageTitle = pageTitle.replace("®", "(r)");
  pageTitle = pageTitle.replace("©", "(c)");
  pageTitle = pageTitle.replace("™", "(tm)");
  if ( pageTitle.indexOf("&") != -1 ) {
    pageTitle = pageTitle.replace("&","%26");
  }
  return pageTitle;
}

function getEmailAPageURL() {
  var pageTitle = document.title;
  var pageURL = document.location.href;
  return '<a href="/contact/EmailAPage.jhtml?title=' + pageTitle + '&url=' + pageURL + '">Click Here</a>';
}

function openWindow( winUrl , winWidth , winHeight ) { 
  openWindow( winUrl, winWidth, winHeight, 'no' );
}

//#########################################
// openWindow
// Opens a pop up window to the specified
// url with the specified width and height
//#########################################
function openWindow( winUrl , winWidth , winHeight, resize ) { 
	var winAttr = 'width=' + winWidth + ',height=' + winHeight + 
				  ',directories=no,status=no,menubar=no,' +
				  'resizable='+resize+',toolbar=no,location=no,scrollbars=yes';
	window.open( winUrl, 'text', winAttr );
}

//#########################################
// openWin DEPRECATED!
// provided for backwards compatibility
// with the site.  Should eventually be
// converted to openWindow
//#########################################
function openWin ( winUrl )
{
	openWindow ( winUrl , 350 , 475 );
}

//#########################################
// jumpPage, MM_findObj, MM_swapImage and MM_preloadImages
// are all used by the nav_top files throughout the site
//#########################################
function jumpPage(s) {
	var newloc = s.options[s.selectedIndex].value;
	if( newloc != "#" ) {
		top.document.location.href = newloc;
	}
}

function MM_findObj(n, d) { //v3.0
  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); return x;
}
/* Functions that swaps images. */
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];}
}
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;
}

/* Functions that handle preload. */
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];}}
}