function getOffset(element,attr) {
	var offset=0;
	element = $(element);
	while(element){
		offset+=element[attr];
		element=element.offsetParent
  	}
	return offset;
}

function createAndAppend(tag,parentObj,bool) {
	if(bool) {
		var newElement = document.createElement(tag);
	}else {
		var newElement = document.createTextNode(tag);
	}
	if(arguments[3]) {
		$(parentObj).insertBefore(newElement,$(parentObj).firstChild);
	}else {
		$(parentObj).appendChild(newElement);
	}
	return newElement;
}

function switchMenu(obj1) {
	if(document.getElementById(obj1)) {
		obj1 = document.getElementById(obj1);
	}
	if (obj1.style.display != "block" ) {
		obj1.style.display = 'block';
	}
	else {
		obj1.style.display = 'none';
	}
}

function swithMeasureSelection() {
	if($('sub9').style.backgroundImage == "url(images/nav/sub9.gif)") {
		$('sub9').onclick = function(){
			gMap.measureLine();
		};
	}
	else if($('sub9').style.backgroundImage == "url(images/nav/sub91.gif)") {
		$('sub9').onclick = function(){
				gMap.measurePoly();
			};
	}
	else {
		$('sub9').onclick = function(){
			gMap.measureLine();
		};
	}
}