if (!GEM) { var GEM = new Object(); };
GEM.resizer = {
	name : "maincontent",
	left : {id:'left'},
	right: {id:'right'},
	offset: 0,
	listenerid : null,
	resizerid : null,	
	init : function() {
		this.left.e	= document.getElementById(this.left.id);	
		this.right.e	= document.getElementById(this.right.id);
		this.listenerid = setInterval("GEM.resizer.listener()",2000);
	},
	get_height : function(_elem) {
		if (_elem.clientHeight) { 
			return _elem.clientHeight;
		} else {
			if (_elem.offsetHeight) { 
				return _elem.offsetHeight; 
			} else { return 0; }
		} 
	},
	resize : function(to_h, t_div) {
		var the_div = eval("this." + t_div +".e");
		var c = this.get_height(the_div);
		var diff = Math.abs(c-to_h);
		if (diff <= 2) {
			the_div.style.height = to_h +'px';
			clearInterval(this.resizerid);
			this.resizerid = null;
		} else {
			the_div.style.height = Math.floor((c+(to_h-c)/2))+'px';
		}
	},
	listener : function() {
		if ((this.get_height(this.left.e)+this.offset) > (this.get_height(this.right.e)-1)) {
			this.resizerid = setInterval("GEM.resizer.resize("+ (this.get_height(this.left.e)-39) +", 'right')",80);
			this.resize_loop = true;
			clearInterval(this.listenerid);
			this.listenerid = null;
		}
		if ((this.get_height(this.left.e)+this.offset) < (this.get_height(this.right.e)+1)) {
			this.resizerid = setInterval("GEM.resizer.resize("+ (this.get_height(this.right.e)-39) +", 'left')",80);
			this.resize_loop = true;
			clearInterval(this.listenerid);
			this.listenerid = null;
		}		
	}
};