var agt=navigator.userAgent.toLowerCase();
var is_mac = (agt.indexOf("mac")!=-1);
if (is_mac){
	document.write("<style type='text/css' media='screen, projection'>");
	document.write("@import 'http://theland.farmonline.com.au/styles/weatherzone/farmonlineweather_mac.css';")
	document.write("</style>");	
} else {
	document.write("<style type='text/css' media='screen, projection'>");
	document.write("@import 'http://theland.farmonline.com.au/styles/weatherzone/farmonlineweather_pc.css';")
	document.write("</style>");			
}

/* 
How it works: just apply the CSS class of 'column' to your pages' main columns.
*/
function matchColumns(sOption){ 
	if(document.getElementsByTagName){ 
		var divs,contDivs,maxHeight,divHeight,d; 
		// get all <div> elements in the document 
		divs=document.getElementsByTagName('div'); 
		contDivs=[]; 
		// initialize maximum height value 
		maxHeight=0; 
		// iterate over all <div> elements in the document 
		for(var i=0;i<divs.length;i++){ 
		  // make collection with <div> elements with class attribute 'container' 
		  if(/\bcolumn\b/.test(divs[i].className)){ 
				d=divs[i]; 
				contDivs[contDivs.length]=d; 
				//alert(d.className);
				// determine height for <div> element 
				if(d.offsetHeight){ 
					 divHeight=d.offsetHeight; 					
				} 
				else if(d.style.pixelHeight){ 
					 divHeight=d.style.pixelHeight;					 
				} 
				// calculate maximum height 
				maxHeight=Math.max(maxHeight,divHeight); 
		  } 
		} 
		// RS 21/09/07. maxHeight is less than "screen height" (total height of current 
		// desktop resolution) then set the maxHeight to the screen height. This prevents
		// situations where the ad column doesn't extend down to the bottom of the visible 
		// screen.
		/*
		if (maxHeight < screen.height) {
			maxHeight = screen.height;
		}
		*/

		/*Was 530, then 580...*/
		
		if (maxHeight < 580) {
			maxHeight = 580;
		}
		
		/*alert('screen.height: ' + screen.height);
		alert('document.body.clientHeight: ' + document.body.clientHeight);
		alert('document.body.scrollHeight: ' + document.body.scrollHeight);*/
		//alert('maxHeight: ' + maxHeight);

		// assign maximum height value to all of container <div> elements 
		
		if (sOption == 'set') {
			//alert('Set');
			for(var i=0;i<contDivs.length;i++){ 
			  contDivs[i].style.height=maxHeight + "px"; 
			} 
		}
		else {
			//alert('Clear');
			for(var i=0;i<contDivs.length;i++){ 
			  contDivs[i].style.height=""; 
			} 
		}
	}
}