// author: Bas Wenneker		website: http://www.solutoire.com
// Fx.FontPlus is MIT-Licensed

Fx.FontPlus = new Class({
	initialize: function(elements, sid, gid, gmid, growsize, growmoresize){
		this.growsize = (growsize) ? growsize : 2;
		this.growmoresize = (growmoresize) ? growmoresize : 4;
		
		this.elements = [];
 		elements.each(function(el){
			this.elements.push([el,el.getStyle('font-size').toInt()]);									   
		},this);
		
		$(gmid).onclick = function(){this.growmore()}.bind(this);
		$(gid).onclick = function(){this.grow()}.bind(this);
		$(sid).onclick = function(){this.shrink()}.bind(this);		
	},
	
	growmore: function(){
		this.elements.each(function(el){
			var currentfsize = el[0].getStyle('font-size').toInt();
			if(currentfsize == el[1])
				el[0].effect('font-size',{duration:300,unit:'px'}).custom(el[1],el[1]+this.growmoresize);
			else if(currentfsize == el[1]+this.growsize)
				el[0].effect('font-size',{duration:300,unit:'px'}).custom(el[1]+this.growsize,el[1]+this.growmoresize);			
		},this);							
	},
	
	grow: function(){		
		this.elements.each(function(el){
			var currentfsize = el[0].getStyle('font-size').toInt();
			if(currentfsize == el[1])
				el[0].effect('font-size',{duration:300,unit:'px'}).custom(el[1],el[1]+this.growsize);
			else if(currentfsize == el[1]+this.growmoresize)
				el[0].effect('font-size',{duration:300,unit:'px'}).custom(el[1]+this.growmoresize,el[1]+this.growsize);	
		},this);							
	},
	
	shrink: function(){
		this.elements.each(function(el){
			var currentfsize = el[0].getStyle('font-size').toInt();
			if(currentfsize == el[1]+this.growsize)
				el[0].effect('font-size',{duration:300,unit:'px'}).custom(el[1]+this.growsize, el[1]);
			else if(currentfsize == el[1]+this.growmoresize)
				el[0].effect('font-size',{duration:300,unit:'px'}).custom(el[1]+this.growmoresize, el[1]);
		},this);		
	}						
});