function LoadPage(page){
	var newWindow = window.open(page, "GISWindow", "resizable=yes,left=0,top=0,width=" + (screen.width - 10) + ", height=" + (screen.height - 60)); 
	if (newWindow==null || typeof(newWindow)=="undefined") {
		alert("A pop up blocker has prevented the map from appearing.  Please allow \n pop-ups to appear from thie website temporarily to view maps.");
	}
	else {
		newWindow.focus();
	}
}


window.onload = function() {
	// check to see that the browser supports the getElementsByTagName method
	// if not, exit the loop 
	if (!document.getElementsByTagName) {
		return false;
		
	} 
	// create an array of objects of each link in the document 
	var popuplinks = document.getElementsByTagName("a");
	// loop through each of these links (anchor tags) 	
	for (var i=0; i < popuplinks.length; i++) {	
		// if the link has a class of "popup"...	
		if (popuplinks[i].className == "popup") {	
			// add an onclick event on the fly to pass the href attribute	
			// of the link to our second function, openPopUp 	
			popuplinks[i].onclick = function() {	
			openPopUp(this.getAttribute("href"));		
			return false; 	
			} 	
		}
		if (popuplinks[i].className == "trainingmod") {	
			// add an onclick event on the fly to pass the href attribute	
			// of the link to our second function, openPopUp 	
			popuplinks[i].onclick = function() {	
			openTraining(this.getAttribute("href"));	
			return false; 	
			} 	
		}
		if (popuplinks[i].className == "pdetail") {	
			// add an onclick event on the fly to pass the href attribute	
			// of the link to our second function, openPopUp 	
			popuplinks[i].onclick = function() {	
			openProject(this.getAttribute("href"));	
			return false; 	
			} 	
		}
		
		
		
		
	} 
} 

function openPopUp(linkURL) {
	var int_windowWidth = 980;
	var int_windowHeight = 700;
	var int_windowLeft = (screen.width - int_windowWidth) / 2;
  	var int_windowTop = (screen.height - int_windowHeight) / 2;
	var str_windowProperties = 'height=' + int_windowHeight + ',width=' + int_windowWidth + ',top=' + int_windowTop + ',left=' + int_windowLeft;
	window.open(linkURL,'popup',str_windowProperties);
}

function openTraining(linkURL) {
	var int_windowWidth = 790;
	var int_windowHeight = 616;
	var int_windowLeft = (screen.width - int_windowWidth) / 2;
  	var int_windowTop = (screen.height - int_windowHeight) / 2;
	var str_windowProperties = 'height=' + int_windowHeight + ',width=' + int_windowWidth + ',top=' + int_windowTop + ',left=' + int_windowLeft;
	window.open(linkURL,'popup',str_windowProperties);
}

function openProject(linkURL) {
	var int_windowWidth = 750;
	var int_windowHeight = 500;
	var int_windowLeft = (screen.width - int_windowWidth) / 2;
  	var int_windowTop = (screen.height - int_windowHeight) / 2;
	var str_windowProperties = 'height=' + int_windowHeight + ',width=' + int_windowWidth + ',top=' + int_windowTop + ',left=' + int_windowLeft +',scrollbars=1';
	my_pwin = window.open(linkURL,'popup',str_windowProperties);
	if (window.focus) {my_pwin.focus()}
}

/*
 * jsBrwSniff v0.5
 *
 * A browser sniffer library
 * http://jsbrwsniff.sf.net
 *
 * Released under the GNU LGPL license
 * Author: Pau Garcia i Quiles <paugq AT users DOT sourceforge DOT net>
 *
 */




function getBrowser(obj) {
    var b=new Array("unknown", "unknown", "unknown", "unknown");

    (isEmpty(obj) ? brs=navigator.userAgent.toLowerCase() : brs=obj);

    if (brs.search(/omniweb[\/\s]v?(\d+([\.-]\d)*)/) != -1) {
    // Omniweb
        b[0]="omniweb";
        b[1]=brs.match(/omniweb[\/\s]v?(\d+([\.-]\d)*)/)[1];
        (b[1] > 4.5 ? b[2]="khtml" : b[2]="omniweb");
        (brs.search(/omniweb[\/\s]((\d+([\.-]\d)*)-)?v(\d+([\.-]\d)*)/) == -1 ?       b[3]=brs.match(/omniweb[\/\s](\d+([\.-]\d)*)/)[1] :        b[3]=brs.match(/omniweb[\/\s]((\d+([\.-]\d)*)-)?v(\d+([\.-]\d)*)/)[4]);
        return b;
    } else if (brs.search(/opera[\/\s](\d+(\.?\d)*)/) != -1) {
    // Opera
        b[0]="opera";
        b[1]=brs.match(/opera[\/\s](\d+(\.?\d)*)/)[1];
        b[2]="opera";
        b[3]=b[1];
        return b;
    } else if (brs.search(/crazy\s?browser\s(\d+(\.?\d)*)/) != -1) {
    // Crazy Browser
        b[0]="crazy";
        b[1]=brs.match(/crazy\s?browser\s(\d+(\.?\d)*)/)[1];
        b[2]="msie";
        b[3]=getMSIEVersion();
        return b;
    } else if (brs.search(/myie2/) != -1) {
    // MyIE2
        b[0]="myie2";
        b[2]="msie";
        b[3]=brs.match(/msie\s(\d+(\.?\d)*)/)[1];
        return b;
    } else if (brs.search(/netcaptor/) != -1) {
    // NetCaptor
        b[0]="netcaptor";
        b[1]=brs.match(/netcaptor\s(\d+(\.?\d)*)/)[1];
        b[2]="msie";
        b[3]=getMSIEVersion();
        return b;
    } else if (brs.search(/avant\sbrowser/) != -1) {
    // Avant Browser
        b[0]="avantbrowser";
        b[2]="msie";
        b[3]=getMSIEVersion();
        return b;
    } else if (brs.search(/msn\s(\d+(\.?\d)*)/) != -1) {
    // MSN Explorer
        b[0]="msn";
        b[1]=brs.match(/msn\s(\d+(\.?\d)*)/)[1];
        b[2]="msie";
        b[3]=getMSIEVersion();
        return b;
    } else if (brs.search(/msie\s(\d+(\.?\d)*)/) != -1) {
    // MS Internet Explorer
        b[0]="msie";
        b[1]=getMSIEVersion();
        b[2]="msie";
        b[3]=b[1];
        return b;
    } else if (brs.search(/powermarks\/(\d+(\.?\d)*)/) != -1) {
    // PowerMarks
        b[0]="powermarks";
        b[1]=brs.match(/powermarks\/(\d+(\.?\d)*)/)[1];
        b[2]="msie";
        try {
            b[3]=getMSIEVersion();
        } catch (e) { }
        return b;
} else if (brs.search(/konqueror[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Konqueror
        b[0]="konqueror";
        b[1]=brs.match(/konqueror[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="khtml";
        return b;
    } else if (brs.search(/safari\/(\d)*/) != -1) {
    // Safari
        b[0]="safari";
        b[1]=brs.match(/safari\/(\d+(\.?\d*)*)/)[1];
        b[2]="khtml";
        b[3]=brs.match(/applewebkit\/(\d+(\.?\d*)*)/)[1];
        return b;
    } else if(brs.search(/zyborg/) != -1) {
    // Zyborg (SSD)
        b[0]="zyborg";
        b[1]=brs.match(/zyborg\/(\d+(\.?\d)*)/)[1];
        b[2]="robot";
        b[3]="-1"
        return b;
    } else if (brs.search(/netscape6[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Netscape 6.x
        b[0]="netscape";
        b[1]=brs.match(/netscape6[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/netscape\/(7\.\d*)/) != -1) {
    // Netscape 7.x
        b[0]="netscape";
        b[1]=brs.match(/netscape\/(7\.\d*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/galeon[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Galeon
        b[0]="galeon";
        b[1]=brs.match(/galeon[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/nautilus[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Nautilus
        b[0]="nautilus";
        b[1]=brs.match(/nautilus[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/firefox[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Firefox
        b[0]="firefox";
        b[1]=brs.match(/firefox[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/k-meleon[\/\s](\d+([\.-]\d)*)/) != -1) {
    // K-Meleon
        b[0]="kmeleon";
        b[1]=brs.match(/k-meleon[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/playstation\s3/) != -1) {
    // Playstation 3
        b[0]="netfront";
        b[1]="2.81"; // Taken from the Wikipedia article
        b[2]="playstation3"
        b[3]=brs.match(/playstation\s3;\s(\d+\.\d+)/)[1];
        return b;
    } else if (brs.search(/firebird[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Firebird
        b[0]="firebird";
        b[1]=brs.match(/firebird[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/phoenix[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Phoenix
        b[0]="phoenix";
        b[1]=brs.match(/phoenix[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/camino[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Camino
        b[0]="camino";
        b[1]=brs.match(/camino[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/epiphany[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Epiphany
        b[0]="epiphany";
        b[1]=brs.match(/epiphany[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/chimera[\/\s](\d+([\.-]\d)*)/) != -1) {
    // Chimera
        b[0]="chimera";
        b[1]=brs.match(/chimera[\/\s](\d+([\.-]\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/icab[\s\/]?(\d+(\.?\d)*)/) !=-1) {
    // iCab
        b[0]="icab";
        b[1]=brs.match(/icab[\s\/]?(\d+(\.?\d)*)/)[1];
        b[2]="icab";
        b[3]=b[1];
        return b;
    } else if (brs.search(/netfront\/(\d+([\._]\d)*)/) != -1) {
    // NetFront
        b[0]="netfront";
        b[1]=brs.match(/netfront\/(\d+([\._]\d)*)/)[1];
        b[2]="netfront";
        b[3]=b[1];
        return b;
    } else if (brs.search(/netscape4\/(\d+([\.-]\d)*)/) != -1) {
    // Netscape 4.x
        b[0]="netscape";
        b[1]=brs.match(/netscape4\/(\d+([\.-]\d)*)/)[1];
        b[2]="mozold";
        b[3]=b[1];
        return b;
    } else if ( (brs.search(/mozilla\/(4.\d*)/) != -1) && (brs.search(/msie\s(\d+(\.?\d)*)/) == -1) ) {
        b[0]="netscape";
        b[1]=brs.match(/mozilla\/(4.\d*)/)[1];
        b[2]="mozold";
        b[3]=b[1];
        return b;
    } else if ((brs.search(/mozilla\/5.0/) != -1) && (brs.search(/gecko\//) != -1)) {
    // Mozilla Seamonkey
        b[0]="mozsea";
        b[1]=brs.match(/rv\x3a(\d+(\.?\d)*)/)[1];
        b[2]="gecko";
        b[3]=getGeckoVersion();
        return b;
    } else if (brs.search(/elinks/) != -1) {
    // ELinks
        b[0]="elinks";
        (brs.search(/elinks\/(\d+(\.?\d)*)/) == -1 ?
b[1]=brs.match(/elinks\s\x28(\d+(\.?\d)*)/)[1] :
b[1]=brs.match(/elinks\/(\d+(\.?\d)*)/)[1]);
        b[2]="elinks";
        b[3]=b[1];
        return b;
    } else if (brs.search(/w3m\/(\d+(\.?\d)*)/) != -1) {
    // w3m
        b[0]="w3m"
        b[1]=brs.match(/(^w3m|\sw3m)\/(\d+(\.?\d)*)/)[2];
        b[2]="w3m";
        b[3]=b[1];
        return b;
    } else if (brs.search(/links/) != -1) {
    // Links
        b[0]="links";
        (brs.search(/links\/(\d+(\.?\d)*)/) == -1 ? b[1]=brs.match(/links\s\x28(\d+(\.?\d)*)/)[1] : b[1]=brs.match(/links\/(\d+(\.?\d)*)/)[1]);
        b[2]="links";
        b[3]=b[1];
        return b;
    } else if (brs.search(/java[\/\s]?(\d+([\._]\d)*)/) != -1) {
    // Java (as web-browser)
        b[0]="java";
        b[1]=brs.match(/java[\/\s]?(\d+([\._]\d)*)/)[1];
        b[2]="java";
        b[3]=b[1];
        return b;
    } else if(brs.search(/lynx/) != -1) {
    // Lynx (SSD)
        b[0]="lynx";
        b[1]=brs.match(/lynx\/(\d+(\.?\d)*)/)[1];
        b[2]="libwww-fm";
        b[3]=brs.match(/libwww-fm\/(\d+(\.?\d)*)/)[1];
        return b;
    } else if(brs.search(/dillo/) != -1) {
    // Dillo (SSD)
        b[0]="dillo";
        b[1]=brs.match(/dillo\s*\/*(\d+(\.?\d)*)/)[1];
        b[2]="dillo";
        b[3]=b[1];
        return b;
    } else if(brs.search(/wget/) != -1) {
    // wget (SSD)
        b[0]="wget";
        b[1]=brs.match(/wget\/(\d+(\.?\d)*)/)[1];
        b[2]="robot";
        b[3]="-1"
        return b;
    } else if(brs.search(/googlebot\-image/) != -1) {
    // GoogleBot-Image (SSD)
        b[0]="googlebotimg";
        b[1]=brs.match(/googlebot\-image\/(\d+(\.?\d)*)/)[1];
        b[2]="robot";
        b[3]="-1"
        return b;
    } else if(brs.search(/googlebot/) != -1) {
    // GoogleBot (SSD)
        b[0]="googlebot";
        b[1]=brs.match(/googlebot\/(\d+(\.?\d)*)/)[1];
        b[2]="robot";
        b[3]="-1"
        return b;
    } else if(brs.search(/msnbot/) != -1) {
    // MSNBot (SSD)
        b[0]="msnbot";
        b[1]=brs.match(/msnbot\/(\d+(\.?\d)*)/)[1];
        b[2]="robot";
        b[3]="-1"
        return b;
    } else if(brs.search(/turnitinbot/) != -1) {
    // Turnitin (SSD)
        b[0]="turnitinbot";
        b[1]=brs.match(/turnitinbot\/(\d+(\.?\d)*)/)[1];
        b[2]="robot";
        b[3]="-1"
        return b;
    } else {
        b[0]="unknown";
        return b;
    }
}

// Return browser's (actual) major version or -1 if bad version entered
function getMajorVersion(v) {
    return (isEmpty(v) ? -1 : (hasDot(v) ? v : v.match(/(\d*)(\.\d*)*/)[1]))
}

// Return browser's (actual) minor version or -1 if bad version entered
function getMinorVersion(v) {
    return (!isEmpty(v) ? (!hasDot(v) ? v.match(/\.(\d*([-\.]\d*)*)/)[1] : 0) :
-1)
}

// Return operating system we are running on top of
function getOS(obj) {

    var os=new Array("unknown", "unknown");

    (isEmpty(obj) ? brs=navigator.userAgent.toLowerCase() : brs=obj);

    if (brs.search(/windows\sce/) != -1) {
        os[0]="wince";
        try {
            os[1]=brs.match(/windows\sce\/(\d+(\.?\d)*)/)[1];
        } catch (e) { }
        return os;
    } else if ( (brs.search(/windows/) !=-1) || ((brs.search(/win9\d{1}/) !=-1))
) {
        os[0]="win";
        if (brs.search(/nt\s5\.1/) != -1) {
            os[1]="xp";
        } else if (brs.search(/nt\s5\.0/) != -1) {
            os[1]="2000";
        } else if ( (brs.search(/win98/) != -1) || (brs.search(/windows\s98/)!=
-1 ) ) {
            os[1]="98";
        } else if (brs.search(/windows\sme/) != -1) {
            os[1]="me";
        } else if (brs.search(/nt\s5\.2/) != -1) {
            os[1]="win2k3";
        } else if ( (brs.search(/windows\s95/) != -1) || (brs.search(/win95/)!=
-1 ) ) {
            os[1]="95";
        } else if ( (brs.search(/nt\s4\.0/) != -1) || (brs.search(/nt4\.0/) ) !=
-1) {
            os[1]="nt4";
        }

        return os;
    } else if (brs.search(/linux/) !=-1) {
        os[0]="linux";
        try {
            os[1] = brs.match(/linux\s?(\d+(\.?\d)*)/)[1];
        } catch (e) { }
        return os;
    } else if (brs.search(/mac\sos\sx/) !=-1) {
        os[0]="macosx";
        return os;
    } else if (brs.search(/freebsd/) !=-1) {
        os[0]="freebsd";
        try {
            os[1] = brs.match(/freebsd\s(\d(\.\d)*)*/)[1];
        } catch (e) { }
        return os;
    } else if (brs.search(/sunos/) !=-1) {
        os[0]="sunos";
        try {
            os[1]=brs.match(/sunos\s(\d(\.\d)*)*/)[1];
        } catch (e) { }
        return os;
    } else if (brs.search(/irix/) !=-1) {
        os[0]="irix";
        try {
            os[1]=brs.match(/irix\s(\d(\.\d)*)*/)[1];
        } catch (e) { }
        return os;
    } else if (brs.search(/openbsd/) !=-1) {
        os[0]="openbsd";
        try {
            os[1] = brs.match(/openbsd\s(\d(\.\d)*)*/)[1];
        } catch (e) { }
        return os;
    } else if ( (brs.search(/macintosh/) !=-1) || (brs.search(/mac\x5fpowerpc/)
!= -1) ) {
        os[0]="macclassic";
        return os;
    } else if (brs.search(/os\/2/) !=-1) {
        os[0]="os2";
        try {
            os[1]=brs.match(/warp\s((\d(\.\d)*)*)/)[1];
        } catch (e) { }
        return os;
    } else if (brs.search(/openvms/) !=-1) {
        os[0]="openvms";
        try {
            os[1]=brs.match(/openvms\sv((\d(\.\d)*)*)/)[1];
        } catch (e)  { }
        return os;
    } else if ( (brs.search(/amigaos/) !=-1) || (brs.search(/amiga/) != -1) ) {
        os[0]="amigaos";
        try {
            os[1]=brs.match(/amigaos\s?(\d(\.\d)*)*/)[1];
        } catch (e) { }
        return os;
    } else if (brs.search(/hurd/) !=-1) {
        os[0]="hurd";
        return os;
    } else if (brs.search(/hp\-ux/) != -1) {
        os[0]="hpux";
        try {
            os[1]=brs.match(/hp\-ux\sb\.[\/\s]?(\d+([\._]\d)*)/)[1];
        } catch (e) { }
        return os;
    } else if ( (brs.search(/unix/) !=-1) || (brs.search(/x11/) != -1 ) ) {
        os[0]="unix";
        return os;
    } else if (brs.search(/cygwin/) !=-1) {
        os[0]="cygwin";
        return os;
    } else if (brs.search(/java[\/\s]?(\d+([\._]\d)*)/) != -1) {
        os[0]="java";
        try {
            os[1]=brs.match(/java[\/\s]?(\d+([\._]\d)*)/)[1];
        } catch (e) { }
        return os;
    } else if (brs.search(/palmos/) != -1) {
        os[0]="palmos";
        return os;
    } else if (brs.search(/symbian\s?os\/(\d+([\._]\d)*)/) != -1) {
        os[0]="symbian";
        try {
            os[1]=brs.match(/symbian\s?os\/(\d+([\._]\d)*)/)[1];
        } catch (e) { }
        return os;
    } else {
        os[0]="unknown";
        return os;
    }
}

// Return Gecko version
function getGeckoVersion() {
    return brs.match(/gecko\/([0-9]+)/)[1];
}

// Return MSIE version
function getMSIEVersion() {
    return brs.match(/msie\s(\d+(\.?\d)*)/)[1];
}

// Return full browser UA string
function getFullUAString(obj) {
    (isEmpty(obj) ? brs=navigator.userAgent.toLowerCase() : brs=obj);
    return brs;
}

// Is Flash plug-in installed?
function hasFlashPlugin(obj) {

    (isEmpty(obj) ? brs=navigator.userAgent.toLowerCase() : brs=obj);

    var f=new Array("0", "0");
    var brwEng=getBrowser(obj)[2];
    var opSys=getOS(obj)[0]; 

    //if (getBrowser(obj)[2]!="msie") {
    if ( (brwEng=="gecko") || (brwEng=="opera") || (brwEng=="khtml") || (brwEng=="mozold") || (opSys=="macosx") || (opSys=="macclassic") ) {
        // Non-IE Flash plug-in detection

        if (navigator.plugins && navigator.plugins.length) {
            x = navigator.plugins["Shockwave Flash"];
            if (x) {
                f[0] = 2;
                if (x.description) {
                    y = x.description;
                    f[1] = y.charAt(y.indexOf('.')-1);
                }
            } else {
                f[0] = 1;
            }
            if (navigator.plugins["Shockwave Flash 2.0"]) {
                f[0] = 2;
                f[0] = 2;
            }
        } else if (navigator.mimeTypes && navigator.mimeTypes.length) {
            x = navigator.mimeTypes['application/x-shockwave-flash'];
            if (x && x.enabledPlugin) {
                f[0] = 2;
            } else {
                f[0] = 1;
            }
        }

   return f;

  } else if (brwEng=="msie") {
      // IE flash detection.
       for(var i=15; i>0; i--) {
           try {
               var flash = new ActiveXObject("ShockwaveFlash.ShockwaveFlash." + i);
               f[1] = i;
               break;
               //return;
           } catch(e) { }
       }

       if (f[1]>0) {
           f[0]=2
       } else {
           f[0]=1
       }
   return f;
   } else {
       f[0]=0;
       f[1]=0;
       return f;
   }
}

/* FOR INTERNAL USE ONLY. THIS FUNCTIONS ARE SUBJECT TO CHANGE, DON'T TRUST THEM */
// Is input empty?
function isEmpty(input) {
    return (input==null || input =="")
}

// Does this string contain a dot?
function hasDot(input) {
    return (input.search(/\./) == -1)
}
/* END OF FOR INTERNAL USE ONLY FUNCTIONS *//**
 * addEvent written by Dean Edwards, 2005
 * with input from Tino Zijdel
 *
 * http://dean.edwards.name/weblog/2005/10/add-event/
 **/
 
function addEvent(element, type, handler) {
	// assign each event handler a unique ID
	if (!handler.$$guid) handler.$$guid = addEvent.guid++;
	// create a hash table of event types for the element
	if (!element.events) element.events = {};
	// create a hash table of event handlers for each element/event pair
	var handlers = element.events[type];
	if (!handlers) {
		handlers = element.events[type] = {};
		// store the existing event handler (if there is one)
		if (element["on" + type]) {
			handlers[0] = element["on" + type];
		}
	}
	// store the event handler in the hash table
	handlers[handler.$$guid] = handler;
	// assign a global event handler to do all the work
	element["on" + type] = handleEvent;
};
// a counter used to create unique IDs
addEvent.guid = 1;

function removeEvent(element, type, handler) {
	// delete the event handler from the hash table
	if (element.events && element.events[type]) {
		delete element.events[type][handler.$$guid];
	}
};

function handleEvent(event) {
	var returnValue = true;
	// grab the event object (IE uses a global event object)
	event = event || fixEvent(window.event);
	// get a reference to the hash table of event handlers
	var handlers = this.events[event.type];
	// execute each event handler
	for (var i in handlers) {
		this.$$handleEvent = handlers[i];
		if (this.$$handleEvent(event) === false) {
			returnValue = false;
		}
	}
	return returnValue;
};

function fixEvent(event) {
	// add W3C standard event methods
	event.preventDefault = fixEvent.preventDefault;
	event.stopPropagation = fixEvent.stopPropagation;
	return event;
};
fixEvent.preventDefault = function() {
	this.returnValue = false;
};
fixEvent.stopPropagation = function() {
	this.cancelBubble = true;
};

// end from Dean Edwards


/**
 * Creates an Element for insertion into the DOM tree.
 * From http://simon.incutio.com/archive/2003/06/15/javascriptWithXML
 *
 * @param element the element type to be created.
 *				e.g. ul (no angle brackets)
 **/
function createElement(element) {
	if (typeof document.createElementNS != 'undefined') {
		return document.createElementNS('http://www.w3.org/1999/xhtml', element);
	}
	if (typeof document.createElement != 'undefined') {
		return document.createElement(element);
	}
	return false;
}

/**
 * "targ" is the element which caused this function to be called
 * from http://www.quirksmode.org/js/events_properties.html
 **/
function getEventTarget(e) {
	var targ;
	if (!e) {
		e = window.event;
	}
	if (e.target) {
		targ = e.target;
	} else if (e.srcElement) {
		targ = e.srcElement;
	}
	if (targ.nodeType == 3) { // defeat Safari bug
		targ = targ.parentNode;
	}

	return targ;
}