function dynamic_css() {
	var screen_width=screen.width;
	var screen_height=screen.height;
	
	var container_obj = document.getElementById("container");
	var column_left_obj = document.getElementById("columnleft");
	var column_right_obj = document.getElementById("columnright");
	var header_obj = document.getElementById("header");
	//var footer_obj = document.getElementById("footer");
	
	//window.alert(screen.height);
	//header_obj.style.height = Math.round(0.27*screen.height);
         //container_obj.style.height = Math.round(0.17*screen.height);
	 //column_left_obj.style.height = Math.round(0.7*screen.height);
	 //column_right_obj.style.height = Math.round(0.7*screen.height);
	 //footer_obj.style.height = Math.round(0.04*screen.height);
}