// Addon Einstellungen

tags = new Array( 'div', 'td', 'tr', 'p', 'b', 'table', 'strong', 'em', 'a', 'h1', 'h2', 'h3', 'pre', 'sub', 'sup', 'i', 'th', 'cp', 'ul', 'ol', 'li', 'dt', 'dd', 'input' );
defaultSize = 12;
resizeCounter = 0;
increment = 2;

// Addon Einstellungen


function wbbbfontresize(resize) {
	if (!document.getElementById) {
		return;
	}
	docBody = document.getElementsByTagName('body')[0];
	for (i = 0 ; i < tags.length ; i++ ) {
		allTags = docBody.getElementsByTagName(tags[i]);

		if (resize > 0) {
			for (k = 0 ; k < allTags.length ; k++) {
				var size = parseInt(allTags[k].style.fontSize.substring(0,allTags[k].style.fontSize.length-2));
				if (size) {
					allTags[k].style.fontSize = (size + increment) + 'px';
				} else {
					allTags[k].style.fontSize = defaultSize + 'px';
				}
			}
		} else {
			for (k = 0 ; k < allTags.length ; k++) {
				var size = parseInt(allTags[k].style.fontSize.substring(0,allTags[k].style.fontSize.length-2));
				if (size && size > 2) {
					allTags[k].style.fontSize = (size - increment) + 'px';
				} else {
					allTags[k].style.fontSize = defaultSize + 'px';
				}
			}
		}
	}

	resize > 0 ? resizeCounter++ : resizeCounter--;
}
function setFontSize(resizeCounter) {
	docBody = document.getElementsByTagName('body')[0];
	for (i = 0 ; i < tags.length ; i++ ) {
		allTags = docBody.getElementsByTagName(tags[i]);
		for (k = 0 ; k < allTags.length ; k++) {
			var size = parseInt(allTags[k].style.fontSize.substring(0,allTags[k].style.fontSize.length-2));
			var resize = size + resizeCounter;
			if (!size) {
				allTags[k].style.fontSize = (parseInt(defaultSize) + parseInt(resizeCounter)) + 'px';
			} else if (size && resize > 0) {
				allTags[k].style.fontSize = resize + 'px';
			}
		}
	}
}
function resetFontSize() {
	docBody = document.getElementsByTagName('body')[0];
	for (i = 0 ; i < tags.length ; i++ ) {
		allTags = docBody.getElementsByTagName(tags[i]);
		for (k = 0 ; k < allTags.length ; k++) {
			allTags[k].style.fontSize = defaultSize + 'px';
		}
	}

	resizeCounter = 0;
}
//cookie functions for remember the font sizes across pages
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
		else expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function setUserOptions(){
	cookie = readCookie("wbbbfontresize");
	if (cookie) {
		resizeCounter = cookie;
	} else {
		return null;
	}

	setFontSize(resizeCounter);
}
function saveSettings()
{
  createCookie("wbbbfontresize", resizeCounter, 365);
}

window.onload = setUserOptions;
window.onunload = saveSettings;