// size the left & right borders
		var x = document.getElementById('content-main').offsetHeight;
		// size the background
		if(x > 900){
			size = '_lrg';
		}else if(x > 600){
			size = '_mid';
		}else{
			size = '_sml';
		}
		x += 20;
		
		//document.getElementById('left').style.height = x;
		//document.getElementById('rite').style.height = x;
		
		// set colours
		var bgColour = '#FFF';
		switch(template_colour){
			case 'purple' : document.getElementById('content-main').style.backgroundColor = '#50324C';
			break;
			case 'blue' : document.getElementById('content-main').style.backgroundColor = '#00525E';
			break;
			case 'green' : document.getElementById('content-main').style.backgroundColor = '#00525E';
			break;
			case 'red' : document.getElementById('content-main').style.backgroundColor = '#940023';
			break;		
			case 'navy' : document.getElementById('content-main').style.backgroundColor = '#001344';
			break;
			case 'orange' : document.getElementById('content-main').style.backgroundColor = '#e24b19';
			break;
			case 'aqua' : document.getElementById('content-main').style.backgroundColor = '#07a3a2';
			break;
			default : document.getElementById('content-main').style.backgroundColor = '#FFF';		
		}
		if(template_colour != ''){
			document.getElementById('content-main').style.backgroundImage = 'url(http://www.nab.com.au/template/images/bg_' + template_colour + size + '.jpg)';
			document.getElementById('content-main').style.backgroundRepeat = 'repeat-x';
		}