/*
	    Written by Jonathan Snook, http://www.snook.ca/jonathan
	    Add-ons by Robert Nyman, http://www.robertnyman.com
	*/

	function getElementsByClassName(oElm, strTagName, strClassName){
	    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	    var arrReturnElements = new Array();
	    strClassName = strClassName.replace(/\-/g, "\\-");
	    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	    var oElement;
	    for(var i=0; i<arrElements.length; i++){
	        oElement = arrElements[i];      
	        if(oRegExp.test(oElement.className)){
	            arrReturnElements.push(oElement);
	        }   
	    }
	    return (arrReturnElements)
	}
	/* end getElementByClassName function */
	
function toggle (y)
{
	if (document.getElementById(y).style.display == "block") {
		document.getElementById(y).style.display = "none"
	} else {
		var divs = new Array();
		divs = getElementsByClassName(document, "span", "docs");
		var x=0; 
		var l = divs.length;
		for (x=0; x<l; x++) 
		{ 
			divs[x].style.display = "none";
		}
		document.getElementById(y).style.display = "block"
	
	}
}