/***********************************************

* Document Text Resizer Script- by JavaScript Kit (www.javascriptkit.com)

* This notice must stay intact for usage

* Visit JavaScript Kit at http://www.javascriptkit.com/ for this script and 100s more

***********************************************/



//Document Text Resizer script (May 14th, 08'): By JavaScript Kit: http://www.javascriptkit.com



var documenttextsizer={



prevcontrol: '', //remember last control clicked on/ selected

existingclasses: '',



setpageclass:function(control, newclass){

	if (this.prevcontrol!='')

			this.css(this.prevcontrol, 'selectedtoggler', 'remove') //de-select previous control, by removing 'selectedtoggler' from it

	document.documentElement.className=this.existingclasses+' '+newclass //apply new class to document

	this.css(control, 'selectedtoggler', 'add') //select current control

	this.setCookie('pagesetting', newclass, 5) //remember new class added to document for 5 days

	this.prevcontrol=control

},



css:function(el, targetclass, action){

	var needle=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "ig")

	if (action=="check")

		return needle.test(el.className)

	else if (action=="remove")

		el.className=el.className.replace(needle, "")

	else if (action=="add")

		el.className+=" "+targetclass

},



getCookie:function(Name){ 

	var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair

	if (document.cookie.match(re)) //if cookie found

		return document.cookie.match(re)[0].split("=")[1] //return its value

	return null

},



setCookie:function(name, value, days){

	if (typeof days!="undefined"){ //if set persistent cookie

		var expireDate = new Date()

		var expstring=expireDate.setDate(expireDate.getDate()+days)

		document.cookie = name+"="+value+"; path=/; expires="+expireDate.toGMTString()

	}

	else //else if this is a session only cookie

		document.cookie = name+"="+value

},



setup:function(targetclass){

	this.existingclasses=document.documentElement.className //store existing CSS classes on HTML element, if any

	var persistedsetting=this.getCookie('pagesetting')

	var alllinks=document.getElementsByTagName("a")

	for (var i=0; i<alllinks.length; i++){

		if (this.css(alllinks[i], targetclass, "check")){

			if (alllinks[i].getAttribute("rel")==persistedsetting) //if this control's rel attribute matches persisted doc CSS class name

				this.setpageclass(alllinks[i], alllinks[i].getAttribute("rel")) //apply persisted class to document

			alllinks[i].onclick=function(){

				documenttextsizer.setpageclass(this, this.getAttribute("rel"))

				return false

			}

		}

	}

}



}