/*********************************************************************************
 Global variables
*********************************************************************************/
//Default browsercheck
function browsercheck(){
    this.ver=navigator.appVersion
    this.agent=navigator.userAgent
    this.dom=document.getElementById?1:0;
    this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
    this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;
    this.ie4=(document.all && !this.dom)?1:0;
    this.ie=this.ie4||this.ie5||this.ie6
    this.mac=this.agent.indexOf("Mac")>-1
    this.opera5=this.agent.indexOf("Opera 5")>-1
    this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
    this.ns4=(document.layers && !this.dom)?1:0;
    this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5 || this.dom)
    return this
}
var bw=browsercheck();

window.name = "MainWin";

if(!bw.bw){
        alert("I'm sorry some of the scripts on this page may not work with\n" +
              "your browser.  Please update your browser and visit again.\n");
}


var PageImages = new Array();
var PageAltImages = new Array();
var nest = "";
var loaded = 0;


/*********************************************************************************
Images Preload
*********************************************************************************/
		
function LoadActiveImages() {
	var num = document.images.length;
	for (var i = 0; i < num; i++) {
		var thisImage = document.images[i];
		var thisImageSrc = thisImage.src;
		var imageName = thisImageSrc.substring(0,thisImageSrc.lastIndexOf("_o"));
		//document.write(imageName + "<BR>");
		if (thisImageSrc.lastIndexOf("_off") != -1) {
			PageImages[i] = new Image(thisImage.width, thisImage.height);
      	    PageImages[i].src = imageName + "_on.gif";
		} else if (thisImage.src.lastIndexOf("_on") != -1) {
			PageAltImages[i] = new Image(thisImage.width, thisImage.height);
      	    PageAltImages[i].src = imageName + "_off.gif";
		}
    }
}
	
window.onload = LoadActiveImages;

/*********************************************************************************
Image Swap
*********************************************************************************/
function imageSwap(which, state) {
     	
	//which - required input of image name
	//state - required input of image rollover state (1 for on, 0 for off)
	//div1,div2,... - optional input layer hierarchy for Netscape 4.0 browsers
	var divNest=''
	var argLength = arguments.length
	
	//loop over the arguments, to check for any passed div id's, and set the nesting
	if (argLength>2) {
		for (var i = 2; i < argLength; i++)  
		divNest=divNest+'document.'+arguments[i]+'.';
	}
	
	//get the element obj reference
 bw.dom?thisImage=document.getElementById(which):bw.ie4?document.all[which]:thisImage=eval(divNest+"document[which]");
	
	//find the image src name
	var imageName = thisImage.src.substring(0,thisImage.src.lastIndexOf("_o"));
	//toggle the src name based on state
	state == 0?endString = "_off.gif":endString = "_on.gif";
	//alert(layerOver);
	//set the image src to the new src
	bw.dom?thisImage.setAttribute("src",imageName + endString):thisImage.src=imageName + endString;
}

/*********************************************************************************
Window Functions
*********************************************************************************/	

// suppress errors
/*function stopError() {
	return true;
}
window.onerror = stopError;
*/

if (window.focus) {
	self.focus();
}

function popWindow(URL,name,widgets) {
	popwin = window.open(URL,name,widgets);
	popwin.focus();	
	popwin.opener = self;
	popwin.name = name;
	window.name = "MainWin";			
}
	
function closeWin(){
	window.close()
}

/**************************************************************************************
show and hide a div
**************************************************************************************/
function getStyleObject(strId) {
		if (document.getElementById && document.getElementById(strId)) {
			return document.getElementById(strId).style;
		} else if (document.all && document.all(strId)) {
			return document.all(strId).style;
		} else {
			return false;
		}
	}
	
function fnExpand(strDivId, objSymbol, blnSwitch) {
	//alert(objDivId);
	//event.cancelBubble = true;
	var objStyle = getStyleObject(strDivId);
	//alert(strStyle.display);
	if (objStyle.display == "none") {
		objStyle.display = "";
		//alert('will be minus');
		if (blnSwitch == 1) {
			objSymbol.src = "../images/btn-minus.gif";		
		}
		//alert(objSymbol.src);
	} else {
		objStyle.display = "none"
		//alert('will be plus');
		if (blnSwitch == 1) {
			objSymbol.src = "../images/btn-plus.gif";	
		}	
	}
}