function setTall() {


	if (document.getElementById) {
	   var footerHeight = 160;
		// the divs array contains references to each column's div element.  
		// Replace 'center' 'right' and 'left' with your own.  
		// Or remove the last one entirely if you've got 2 columns.  Or add another if you've got 4!
		
		// Let's determine the maximum height out of all columns specified
		var maxHeight = 0;
		var headHeight = 210;
		 maxHeight = document.getElementById('content_holder').offsetHeight+headHeight;
		 
		var siteCenter = document.getElementById('content_holder');
		var middleContent = document.getElementById('content_middle');
		
		var footer = document.getElementById('footer');
		
		
		var theWidth, theHeight;
		// Window dimensions: 
		if (window.innerWidth) {
		theWidth=window.innerWidth;
		}
		else if (document.documentElement && document.documentElement.clientWidth) {
		theWidth=document.documentElement.clientWidth;
		}
		else if (document.body) {
		theWidth=document.body.clientWidth;
		}
		if (window.innerHeight) {
		theHeight=window.innerHeight;
		}
		else if (document.documentElement && document.documentElement.clientHeight) {
		theHeight=document.documentElement.clientHeight;
		}
		else if (document.body) {
		theHeight=document.body.clientHeight;
		}

			    theHeight = theHeight - headHeight;
          siteCenter.style.height=theHeight +'px';
          
			    theHeight = theHeight - 14;
          middleContent.style.height=theHeight +'px';
			
	
	}
	
}


  
window.onload = function(){
		setTall();	
}
 
window.onresize = function(){
		setTall();	
}