// Jump menu
function jumpMenu(target,selectedObject,restore){ 
  eval(target+".location='"+selectedObject.options[selectedObject.selectedIndex].value+"'");
  if (restore) selectedObject.selectedIndex=0;
}

 
// pop centered window
function newWindow(URL,pageName,w,h,scroll,resize,toolbar)
 {
  LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
  TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
  settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable='+resize+',toolbar='+toolbar+'';
  win = window.open(URL,pageName,settings);
 }
 
// pop centered window full screen 
function newFullWindow(URL,pageName,w,h,scroll,resize,toolbar)
 {
  LeftPosition = 0;// (screen.width) ? (screen.width-w)/2 : 0;
  TopPosition = 0; // (screen.height) ? (screen.height-h)/2 : 0;
  
  settings = 'height='+screen.height+',width='+screen.width+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable='+resize+',toolbar='+toolbar+'';
  win = window.open(URL,pageName,settings);
 }
/* use this code to call the script
<a href="#" onClick="newWindow('untitled.html','PageName','600','400','yes','yes','yes')">Link/Image or OnLoad</a>*/

/***********************************************************************************\
  toggle the visibility of a div in css
\***********************************************************************************/
// <a href="javascript:toggleDisplayForDIV('divToToggle')">Show/Hide DIV</a> 
function toggleDisplayForDIV(frameName) {
	var frame = document.getElementById(frameName);
	
	if (frame.style.display == 'block') {
		frame.style.display = 'none';
	} else {
		frame.style.display = 'block';
	}
}

/***********************************************************************************\
  make a div invisible
\***********************************************************************************/
// <a href="javascript:makeDIVInvisible('div')">Hide DIV</a> 
function makeDIVInvisible(div) {
	var frame = document.getElementById(div);
	frame.style.display = 'none';
}

/***********************************************************************************\
  make a div visible
\***********************************************************************************/
// <a href="javascript:makeDIVVisible('div')">Show DIV</a> 
function makeDIVVisible(div) {
	var frame = document.getElementById(div);
	frame.style.display = 'block';
}

/**
 * Sets a Cookie with the given name and value.
 *
 * name       Name of the cookie
 * value      Value of the cookie
 * [expires]  Expiration date of the cookie (default: end of current session)
 * [path]     Path where the cookie is valid (default: path of calling document)
 * [domain]   Domain where the cookie is valid
 *              (default: domain of calling document)
 * [secure]   Boolean value indicating if the cookie transmission requires a
 *              secure transmission
 */
function setCookie(name, value, expires, path, domain, secure) {
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}

/**
 * Gets the value of the specified cookie.
 *
 * name  Name of the desired cookie.
 *
 * Returns a string containing value of specified cookie,
 *   or null if cookie does not exist.
 */
function getCookie(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    } else {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}

/**
 * Deletes the specified cookie.
 *
 * name      name of the cookie
 * [path]    path of the cookie (must be same as path used to create cookie)
 * [domain]  domain of the cookie (must be same as domain used to create cookie)
 */
function deleteCookie(name, path, domain) {
    if (getCookie(name)) {
        document.cookie = name + "=" +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
}


/***********************************************************************************\
  sets all the checkboxes in a certain set of checkboxes to either true or false
\***********************************************************************************/
function setCheckboxes(formName, elementName, checkStatus) {
	form		= document.getElementById(formName);
	elements	= form.elements[elementName];
    for (var i = 0; i < elements.length; i++) {
        elements[i].checked = checkStatus;
    }
    return true;
}

function addLoadEvent(event)
{
	Event.observe(window, 'load', event, false);
}

function addUnloadEvent(event)
{
	Event.observe(window, 'unload', event, false);
}