/*********************************************************************************
dw_cookies.js-cookie functions for www.dyn-web.com
Recycled from various sources
**********************************************************************************/
function setCookie(name,value,days,path,domain,secure) {
var expires, date;
if (typeof days == "number") {
date = new Date();
date.setTime( date.getTime()+(days*24*60*60*1000) );
expires = date.toGMTString();
}
document.cookie = name+"="+escape(value)+
((expires) ? "; expires="+expires : "")+
((path) ? "; path="+path : "")+
((domain) ? "; domain="+domain : "")+
((secure) ? "; secure" : "");
}
function getCookie(name) {
var nameq = name+"=";
var c_ar = document.cookie.split(';');
for (var i=0; i<c_ar.length; i++) {
var c = c_ar[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameq) == 0) return unescape( c.substring(nameq.length, c.length) );
}
return null;
}
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";
}
}
/*
dw_sizerdx.js version date: Feb 2006
requires dw_cookies.js
Feb 2006 Revisions: add queryName property (fix major oops for PHP compatibility)
all global modifier to trim method re (another oops fixed)
Mar 2005 Revisions: added setDefaults method,
set method now accepts array of selectors,
reset fn now sets adjustList el's font-sizes to empty string,
fixed bugs in dw_getElementsBySelector fn
*/
/*************************************************************************
This code is from Dynamic Web Coding at dyn-web.com
Copyright 2004-6 by Sharon Paine
See Terms of Use at www.dyn-web.com/bus/terms.html
regarding conditions under which you may use this code.
This notice must be retained in the code as is!
*************************************************************************/
var dw_fontSizerDX = {
sizeUnit:       "%",
defaultSize:    90,
maxSize:        150,
minSize:        60,
queryName:      "dw_fsz",   // name to check query string for when passing size in URL
queryNum:       true,       // check query string for number only (eg. index.html?18 )
adjustList:     [],         // set method populates
setDefaults: function(unit, dflt, mn, mx, sels) {
this.sizeUnit = unit;       this.defaultSize = dflt;
this.maxSize = mx;          this.minSize = mn;
if (sels) this.set(dflt, mn, mx, sels);
},
set: function (dflt, mn, mx, sels) {
var ln = this.adjustList.length;
for (var i=0; sels[i]; i++) {
this.adjustList[ln+i] = [];
this.adjustList[ln+i]["sel"]  = sels[i];
this.adjustList[ln+i]["dflt"] = dflt;
this.adjustList[ln+i]["min"]   = mn || this.minSize;
this.adjustList[ln+i]["max"]   = mx || this.maxSize;
this.adjustList[ln+i]["ratio"] = this.adjustList[ln+i]["dflt"] / this.defaultSize;
}
},
init: function() {
if ( !document.getElementById || !document.getElementsByTagName ) return;
var size, sizerEl, i;
size = getValueFromQueryString( this.queryName, this.queryNum );
if ( isNaN( parseFloat(size) ) || size > this.maxSize || size < this.minSize ) {
size = getCookie("fontSize");
if ( isNaN( parseFloat(size) ) || size > this.maxSize || size < this.minSize ) {
size = this.defaultSize;
}
}
this.curSize = this.defaultSize;  // create curSize property to use in calculations
sizerEl = document.getElementById('sizer');
if (sizerEl) sizerEl.style.display = "block";
if (this.adjustList.length == 0) {
this.setDefaults( this.sizeUnit, this.defaultSize, this.minSize, this.maxSize, ['body', 'td'] );
}
if ( size != this.defaultSize ) this.adjust( size-this.defaultSize );
},
adjust: function(n) {
if ( !this.curSize ) return;
var alist, size, list, i, j;
if ( n > 0 ) {
if ( this.curSize+n > this.maxSize ) n = this.maxSize-this.curSize;
} else if ( n < 0 ) {
if ( this.curSize+n < this.minSize ) n = this.minSize-this.curSize;
}
if ( n == 0 ) return;
this.curSize+= n;
alist = this.adjustList;
for (i=0; alist[i]; i++) {
size = this.curSize * alist[i]['ratio']; // maintain proportion
size = Math.max(alist[i]['min'], size); size = Math.min(alist[i]['max'], size);
list = dw_getElementsBySelector( alist[i]['sel'] );
for (j=0; list[j]; j++) { list[j].style.fontSize = size+this.sizeUnit; }
}
setCookie( "fontSize", this.curSize, 180, "/" );
},
reset: function() {
if ( !this.curSize ) return;
var alist = this.adjustList, list, i, j;
for (i=0; alist[i]; i++) {
list = dw_getElementsBySelector( alist[i]['sel'] );
for (j=0; list[j]; j++) {
list[j].style.fontSize = '';  // restores original font size
}
}
this.curSize = this.defaultSize;
deleteCookie("fontSize", "/");
}
};
function dw_getElementsBySelector(selector) {
if (!document.getElementsByTagName) return [];
var nodeList = [document], tokens, bits, list, col, els, i, j, k;
selector = selector.normalize();
tokens = selector.split(' ');
for (i=0; tokens[i]; i++) {
if ( tokens[i].indexOf('#') !=-1 ) {  // id
bits = tokens[i].split('#');
var el = document.getElementById( bits[1] );
if (!el) return [];
if ( bits[0] ) {  // check tag
if ( el.tagName.toLowerCase() != bits[0].toLowerCase() ) return [];
}
for (j=0; nodeList[j]; j++) {  // check containment
if ( nodeList[j] == document || dw_contained(el, nodeList[j]) )
nodeList = [el];
else return [];
}
} else if ( tokens[i].indexOf('.') !=-1 ) {  // class
bits = tokens[i].split('.'); col = [];
for (j=0; nodeList[j]; j++) {
els = dw_getElementsByClassName( bits[1], bits[0], nodeList[j] );
for (k=0; els[k]; k++) { col[col.length] = els[k]; }
}
nodeList = [];
for (j=0; col[j]; j++) { nodeList.push(col[j]); }
} else {  // element
els = [];
for (j = 0; nodeList[j]; j++) {
list = nodeList[j].getElementsByTagName(tokens[i]);
for (k = 0; list[k]; k++) { els.push(list[k]); }
}
nodeList = els;
}
}
return nodeList;
};
function dw_getElementsByClassName(sClass, sTag, oCont) {
var result = [], list, i;
var re = new RegExp("\\b"+sClass+"\\b", "i");
oCont = oCont? oCont: document;
if ( document.getElementsByTagName ) {
if ( !sTag || sTag == "*" ) {
list = oCont.all? oCont.all: oCont.getElementsByTagName("*");
} else {
list = oCont.getElementsByTagName(sTag);
}
for (i=0; list[i]; i++)
if ( re.test( list[i].className ) ) result.push( list[i] );
}
return result;
};
function getValueFromQueryString(varName, bReturn) {
var val = "";
if (window.location.search) {
var qStr = window.location.search.slice(1);
var ar = qStr.split("&");
var get = [], ar2;
for (var i=0; ar[i]; i++) {
if ( ar[i].indexOf("=") !=-1 ) {
ar2 = ar[i].split("=");
get[ ar2[0] ] = ar2[1];
}
}
val = get[varName];
if ( !val && bReturn ) {
val = qStr;
}
}
return val;
};
function dw_contained(oNode, oCont) {
if (!oNode) return; // in case alt-tab away while hovering (prevent error)
while ( oNode = oNode.parentNode ) if ( oNode == oCont ) return true;
return false;
};
if (!Array.prototype.push) {  // ie5.0
Array.prototype.push =  function() {
for (var i=0; arguments[i]; i++) this[this.length] = arguments[i];
return this[this.length-1]; // return last value appended
}
};
String.prototype.normalize = function() {
var re = /\s\s+/g;
return this.trim().replace(re, " ");
};
String.prototype.trim = function() {
var re = /^\s+|\s+$/g;
return this.replace(re, "");
};