// set width of TD R_nav if monitor screen width is > 1050
/* this will automatically increase the width of the DIV id="R_nav"
if (screen.width >= 1050){ varTD_size = 225;
} else { varTD_size = 194;} 
document.getElementById("R_nav").style.width = varTD_size + 'px';
*/

function showHide(divID){
 e=document.getElementById(divID);
 var currentView = e.style.display;
 if(currentView == "none"){
 	showdiv(divID);
	}
 else{
    hidediv(divID);
	}
 
}

 //Hide Show An Element
		function hidediv(id) {
			//safe function to hide an element with a specified id
			if (document.getElementById) { // DOM3 = IE5, NS6
				document.getElementById(id).style.display = 'none';
			}
			else {
				if (document.layers) { // Netscape 4
					document.id.display = 'none';
				}
				else { // IE 4
					document.all.id.style.display = 'none';
				}
			}
		}
	
		function showdiv(id) {
			//safe function to show an element with a specified id
			if (document.getElementById) { // DOM3 = IE5, NS6
				document.getElementById(id).style.display = 'block';
			}
			else {
				if (document.layers) { // Netscape 4
					document.id.display = 'block';
				}
				else { // IE 4
					document.all.id.style.display = 'block';
				}
			}
		}