/*Function to get window dimensions by support rather than browser */ 

		function getWinDims() {
			var result=new Array();
			if(window.innerWidth) {
				result[0]=window.innerWidth; result[1]=window.innerHeight;
				return result;
				}
			if(document.documentElement && document.documentElement.clientWidth) {
				if(document.clientWidth) {
					result[0]=document.clientWidth; result[1]=document.clientHeight;
					} else {
					result[0]=document.documentElement.clientWidth; result[1]=document.documentElement.clientHeight;
					}
				return result;
				}
			if(document.body) {
				result[0]=document.body.clientWidth; result[1]=document.body.clientHeight;
				return result;
				}}

function Is() {
	var agent  = navigator.userAgent.toLowerCase();
	var plat  = navigator.platform.toLowerCase();

    this.major = parseInt(navigator.appVersion);
    this.minor = parseFloat(navigator.appVersion);

    this.ns    = ((agent.indexOf('mozilla')   !=   -1) &&
                 ((agent.indexOf('spoofer')   ==   -1) &&
                 (agent.indexOf('compatible') ==   -1)));
    this.ns2   = (this.ns && (this.major      ==    3));
    this.ns3   = (this.ns && (this.major      ==    3));
    this.ns4b  = (this.ns && (this.major      ==    4) &&
                 (this.minor                  <= 4.03));
    this.ns4   = (this.ns && (this.major      >=    4));
    this.ns6    = (this.ns && (this.major     >=    5));
    this.ns7    = (this.ns && (this.major     >=    7));
    this.ie    = (agent.indexOf("msie")       !=   -1);
    this.ie3   = (this.ie && (this.major      <     4));
    this.ie4   = (this.ie && (this.major      ==    4) &&
                 (agent.indexOf("msie 5.0")   ==   -1));
    this.ie5   = (this.ie && (this.major      ==    4) &&
                 (agent.indexOf("msie 5.0")   !=   -1));
    this.ie55  = (this.ie && (this.major      ==    4) &&
                 (agent.indexOf("msie 5.5")   !=   -1));
    this.cam   = (agent.indexOf('camino')     !=   -1);
    this.opera = (agent.indexOf('opera')      !=   -1);
    this.saf   = (agent.indexOf('safari')     !=   -1);
    this.ff    = (agent.indexOf('firefox')    !=   -1);
    this.kong  = (agent.indexOf('konqueror')  !=   -1);
    this.linux = (plat.indexOf('linux')       !=   -1);
    this.w32   = (plat.indexOf('win32')       !=   -1);
    this.mcp   = (plat.indexOf('macppc')      !=   -1);
    this.m68   = (plat.indexOf('mac68k')      !=   -1);
    this.mac   = (this.mcp || this.m68);
}

 



function getAngle(this_x,this_y,that_x,that_y) { 
	var r=360+Math.round(Math.atan2(that_y-this_y,that_x-this_x)/0.017453293);
	r-=360*(r>=360); return r;
	}	//returns the angle in degrees formed by the horizontal plane running through 
		//this and a line from this to that, reckoning clockwise

function signOf(n) { return n>=0; } //true if n is 0 or greater, false if negative

function toggleBool(tf) { return !tf }
/*function toggleBool(tf) { if(tf) return false;
							else return true } //true if arg if false, false if true
*/

function rndInRange(lower,upper) {	return (lower+Math.floor(Math.random()*(++upper-lower))); } 
//returns a random integer in the range	lower to upper. Either or both may be negative

function posneg() {return -1+2*Math.floor(Math.random()+.5)} // returns 1 or -1 at random. 
															 //useful for eg, reversing direction 
															 //of a moving object at random


function showhide() { //args in pairs ("div1",true,"div2",false..) true to show, false to hide. Note quotes
	var a=arguments,vh,success;
	for(var loop=0;loop<a.length;loop+=2) {
		a[loop+1] ? vh="visible" : vh="hidden";
		success=changeObjectVisibility(a[loop],vh);
	}
	return success;
}

	
function cap(s) { //cap initial letter of s
	var i=s.charAt(0);
	return i.toUpperCase()+s.substr(1);
	}
	
	
	
function percentageOf(total,portion) {return 100/total*portion }	//what percentage of total is portion?	eg percentageOf(200,50) returns 25
		
function percent(total,portion) {return total/100*portion }	//what is portion percent of total?	eg percent(200,50) returns 100
		

function new_visit() {
	var url_pattern=/(\w+):\/\/([\w.]+)\/(\S*)/;
	var r1,r2;
	if(document.referrer) {
		var docref=document.referrer;
		var docloc=document.URL; 
		r1=docref.match(url_pattern);//if(!r1) r1=new Array(" "," ","2");
		r2=docloc.match(url_pattern);
		return r1[2]!=r2[2];
	} else {return true;}
	}
	
function getFileName() {
	var docloc, url_pattern=/(\w+):\/\/([\w.]+)\/(\S*)/;
	var r1,slash,pt,r2;
		if(document.URL) {
			docloc=document.URL; pt=-1;
			while(pt==-1) {
				pt=docloc.lastIndexOf('.html');
				if(pt==-1) { docloc += 'index.html';}
				}
			pt--; slash=docloc.lastIndexOf('/');
			return docloc.substr(slash+1,pt-slash);
		} else {return 'index';}
		}

	
function dinner(str,tagid) {
	var d=getObject(tagid);
	if(d) d.innerHTML=str;
	}

function assign_page_order() {
			for(var loop=0;loop<arguments.length;loop++) eval(arguments[loop]+'='+loop);
			}

function getObject(objectId) {
    // cross-browser function to get an object given its id
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId);
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId);
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getObject

function getTagArray(o,tag) {
    // cross-browser function to get an object's 'tag' elements
    if(o.getElementsByTagName) {
	// W3C DOM
	return o.getElementsByTagName(tag);
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId);
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getTagArray

function getStyleObject(objectId) {
    // cross-browser function to get an object's style object given its id
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId).style;
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId).style;
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getStyleObject

function getObjectPosition(objectId) {
	var xy=new Array();
    // cross-browser function to get an object's xy coords given its id
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	xy[0] = document.getElementById(objectId).style.top;
	xy[1] = document.getElementById(objectId).style.left;
	return xy;
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	xy[0] = document.all(objectId).style.top;
	xy[1] = document.all(objectId).style.left;
	return xy;
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	xy[0] = document.layers[objectId].top;
	xy[1] = document.layers[objectId].left;
	return xy;
    } else {
	return false;
    }
} // getStyleObject

function changeObjectVisibility(objectId, newVisibility) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.visibility = newVisibility;
	return true;
    } else {
	// we couldn't find the object, so we can't change its visibility
	return false;
    }
} // changeObjectVisibility

function toggleObjectVisibility(objectId) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
    var currentVisibility = styleObject.visibility;
    if(currentVisibility=='visible') styleObject.visibility = 'hidden';
    else styleObject.visibility = 'visible';
	return true;
    } else {
	// we couldn't find the object, so we can't change its visibility
	return false;
    }
} // toggleObjectVisibility

function changeObjectDisplay(objectId, newDisplay) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.display = newDisplay;
	return true;
    } else {
	// we couldn't find the object, so we can't change its visibility
	return false;
    }
} // changeObjectVisibility

function changeObjectBG(objectId, newBG) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.backgroundColor = newBG;
	return true;
    } else {
	// we couldn't find the object, so we can't change it
	return false;
    }
} // changeObjectBackground

function changeObjectColour(objectId, newColour) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.color = newColour;
	return true;
    } else {
	// we couldn't find the object, so we can't change its colour
	return false;
    }
} // changeObjectColour

function moveObject(objectId, newXCoordinate, newYCoordinate) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.left = newXCoordinate;
	styleObject.top = newYCoordinate;
	return true;
    } else {
	// we couldn't find the object, so we can't very well move it
	return false;
    }
} // moveObject by top-left

function moveObject_br(objectId, newXCoordinate, newYCoordinate) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.right = newXCoordinate;
	styleObject.bottom = newYCoordinate;
	return true;
    } else {
	// we couldn't find the object, so we can't very well move it
	return false;
    }
} // moveObject by bottom right


function Globals() {
	this.newvisit = new_visit();
	this.nv = this.newvisit ? 1 : 0;
	}
	
var G = new Globals(); G.intID=null;


		function edit(i,t,c) { 
			opwin('pw','at_add-edit.php?t='+t+'&x=c&id='+i+'&cat='+c+'&u=&parent=',1000,850,200,100,',resizable,scrollbars');
		}
			
		function opwin(n,u) { 
			var ww,wh,wx,wy,wf;
			if(arguments.length==2) {
				ww=Math.floor(screen.width*80/100);
				wh=Math.floor(screen.height*75/100);
				wx=Math.floor(screen.width*10/100);
				wy=Math.floor(screen.height*3/100);
				wf=',location,menubar,resizable,status,scrollbars,toolbar';
			} else {
				ww=arguments[2];
				wh=arguments[3];
				wx=arguments[4];
				wy=arguments[5];
				wf='';
				if(arguments.length==7) {
					wf=arguments[6];
				}
			}
			var feats='width='+ww+',height='+wh+',left='+wx+',screenX='+wx+',top='+wy+',screenY='+wy+wf;
			return window.open(u,n,feats);
		}
		
		function spellNumber(n,cap) {
			switch(n) {
				case 1:
					if(cap) return 'One'; else return 'one';
				case 2:
					if(cap) return 'Two'; else return 'two';
				case 3:
					if(cap) return 'Three'; else return 'three';
				case 4:
					if(cap) return 'Four'; else return 'four';
				case 5:
					if(cap) return 'Five'; else return 'five';
				case 6:
					if(cap) return 'Six'; else return 'six';
				case 7:
					if(cap) return 'Seven'; else return 'seven';
				case 8:
					if(cap) return 'Eight'; else return 'eight';
				case 9:
					if(cap) return 'Nine'; else return 'nine';
				case 10:
					if(cap) return 'Ten'; else return 'ten';
				default:
					return ''+n;
			}
		}
		

		//The following cookie functions come from 'JavaScript: the definitive guide' (O'Reilly)
		
		function Cookie(doc,name,hours,path,domain,secure) {
			//predefined properties begin with $ to distinguish them from
			// other properties, which are the values to be stored in the cookie
			
			this.$document = doc;
			this.$name = name;
			if(hours) this.$expiration = new Date((new Date()).getTime()+hours*3600000);
			else this.$expiration = null;
			if(path) this.$path = path; else this.$path = null;
			if(domain) this.$domain = domain; else this.$domain = null;
			if(secure) this.$secure = secure; else this.$secure = null;
		}
		
		
		// This function is the store method of our Cookie object
		Cookie.prototype.store = function() {
			//first loop through the properties of the Cookie object and put together
			//the value of the cookie. Since cookies use the equals sign and semicolons
			//as separators, we'll use colons and ampersands for the individual state
			//variables we store within a single cookie value. Note that we escape the value of
			//each state var in case it contains punctuation or other illegal characters
			
			var cookieval = "";
			
			for(var prop in this) {
				//ignore $ properties and methods
				if((prop.charAt(0) == '$') || ((typeof this[prop]) == 'function')) continue;
				if(cookieval != '') cookieval += '&';
				cookieval += prop + ':' + escape(this[prop]);
			}
			
			//Now we put together the complete cookie string
			
			var cookie = this.$name + '=' + cookieval;
			if(this.$expiration) cookie += '; expires=' + this.$expiration.toGMTString();
			if(this.$path) cookie += '; path=' + this.$path;
			if(this.$domain) cookie += '; domain=' + this.$domain;
			if(this.$secure) cookie += '; secure';
			
			//Now store the cookie by setting the magic Document.cookie property
			this.$document.cookie = cookie;
		}
		
		//This function is the load() method of the Cookie object
		Cookie.prototype.load = function() {
			//First get a list of all cookies that pertain to this document
			//Do this by reading the magic Document.cookie property
			
			var allcookies = this.$document.cookie;
			if(allcookies == "") return false;
			
			//Now extract just the named cookie from the list
			var start = allcookies.indexOf(this.$name +'=');
			if(start == -1) return false; //cookie not defined for this page
			start += this.$name.length+1; //skip name and = sign
			var end = allcookies.indexOf(';',start);
			if(end == -1) end = allcookies.length;
			var cookieval = allcookies.substring(start,end);
			
			//Now we know the value of the named cookie, we must break that value down
			//into individual state variable names and values. The name-value pairs are 
			//separated by ampersands, and the individual names and values are separated 
			//by colons. We use the split() method to parse everything
			var a = cookieval.split('&'); //produce an array of name-value pairs
			for(var i=0; i<a.length; i++) a[i] = a[i].split(':');
			
			
			//Now that we have parsed the cookie value, we set all the names and values of the 
			//state variables in this Cookie object. We unescape() the property value becase we 
			//called escape() when we stored it.
			for(var i=0; i<a.length; i++) this[a[i][0]] = unescape(a[i][1]);
			
			//we're done so...
			return true;

		}
		
		//This function is the remove() method of the Cookie object
		Cookie.prototype.remove = function() {
			var cookie = this.$name + '=';
			if(this.$path) cookie += '; path=' + this.$path;
			if(this.$domain) cookie += '; domain=' + this.$domain;
			cookie += '; expires=Fri, 02-Jan-1970 00:00:00 GMT';
			
			this.$document.cookie = cookie;
		}