function update_content_pos()
	{
	  var div = document.getElementById("content");
		div.style.height = get_size('h') - 212 + "px";
		div.style.width = get_size('w') - 365 + "px";
		div.style.visibility = 'visible';
	}
	

	function start_render()
	{
		render_int = setInterval(update_content_pos,300);
	}


	function get_size(w_or_h) 
	{
		var myWidth = 0, myHeight = 0;
		
		if( typeof( window.innerWidth ) == 'number' ) 
		{
			//Non-IE
			myWidth = window.innerWidth;
			myHeight = window.innerHeight;
		} 
		else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) 
		{
			//IE 6+ in 'standards compliant mode'
			myWidth = document.documentElement.clientWidth;
			myHeight = document.documentElement.clientHeight;
		} 
		else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) 
		{
			//IE 4 compatible
			myWidth = document.body.clientWidth;
			myHeight = document.body.clientHeight;
		}
		
		if (w_or_h=='w') return myWidth;
		else return myHeight;
		
	}
	
	
	// swap image from *_1.??? to *_2.??? or backwards
	function swapImg(img,over)
	{
		if (over) var new_file = img.src.substr(0,img.src.length-5)+"2."+img.src.substr(img.src.length-3,img.src.length);
		else var new_file = img.src.substr(0,img.src.length-5)+"1."+img.src.substr(img.src.length-3,img.src.length);
		img.src = new_file;
	}