function fixColumns(){

	var c1 = document.getElementById("left_col");
	var c2 = document.getElementById("center_col");
	var c3 = document.getElementById("right_col");

	if(c1.offsetHeight && c2.offsetHeight && c3.offsetHeight){

		maxheight=Math.max(c1.offsetHeight,c2.offsetHeight,c3.offsetHeight);

	}

	c1.style.height = maxheight+'px';
	c2.style.height = maxheight+'px';
	c3.style.height = maxheight+'px';

}

function fixColumns2(){

	var co1 = document.getElementById("left_col");	
	var co2 = document.getElementById("right_col");

	if(co1.offsetHeight && co2.offsetHeight ){

		maxheight=Math.max(co1.offsetHeight,co2.offsetHeight);

	}

	co1.style.height = maxheight+'px';
	co2.style.height = maxheight-8+'px';
	

}