// JavaScript Document
browser_DOM = (document.getElementById) ? true : false;
browser_Khtml = (navigator.product) ? (navigator.product.indexOf('khtml') >= 0) : false;
browser_Opera = (navigator.appName) ? (navigator.appName.indexOf('Opera') >= 0) : false;
browser_IE = (document.all) ? (!browser_Khtml && !browser_Opera) : false;
browser_NS = (document.layers) ? true : ((navigator.vendor) && (navigator.vendor.indexOf('Netscape') >=0 ));
browser_Mac = (navigator.appVersion.indexOf("Mac") != -1);
browser_Gecko = (browser_DOM && browser_NS) || ((navigator.product) && (navigator.product.indexOf('Gecko') >= 0));

function showPriMenu(menuid) {
	var menu = document.getElementById(menuid);
	menu.style.display = "block";
}
function hidePriMenu(menuid) {
	var menu = document.getElementById(menuid);
	menu.style.display = "none";
}
function togglePriMenu(menuid) {
	var menu = document.getElementById(menuid);
	if (menu.style.display == "block") {
		menu.style.display = "none";
	} else {
		menu.style.display = "block";	
	}
}
function getAnchorPosition(anchorname) {
	// This function will return an Object with x and y properties
	var useWindow=false;
	var coordinates=new Object();
	var x=0,y=0;
	// Browser capability sniffing
	var use_gebi=false, use_css=false, use_layers=false;
	if (document.getElementById) { use_gebi=true; }
	else if (document.all) { use_css=true; }
	else if (document.layers) { use_layers=true; }
	// Logic to find position
 	if (use_gebi && document.all) {
		x=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
		y=AnchorPosition_getPageOffsetTop(document.all[anchorname]);
		}
	else if (use_gebi) {
		var o=document.getElementById(anchorname);
		x=AnchorPosition_getPageOffsetLeft(o);
		y=AnchorPosition_getPageOffsetTop(o);
		}
 	else if (use_css) {
		x=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
		y=AnchorPosition_getPageOffsetTop(document.all[anchorname]);
		}
	else if (use_layers) {
		var found=0;
		for (var i=0; i<document.anchors.length; i++) {
			if (document.anchors[i].name==anchorname) { found=1; break; }
			}
		if (found==0) {
			coordinates.x=0; coordinates.y=0; return coordinates;
			}
		x=document.anchors[i].x;
		y=document.anchors[i].y;
		}
	else {
		coordinates.x=0; coordinates.y=0; return coordinates;
		}
	coordinates.x=x;
	coordinates.y=y;
	return coordinates;
}
// Functions for IE to get position of an object
function AnchorPosition_getPageOffsetLeft (el) {
	var ol=el.offsetLeft;
	while ((el=el.offsetParent) != null) { ol += el.offsetLeft; }
	return ol;
}
function AnchorPosition_getWindowOffsetLeft (el) {
	return AnchorPosition_getPageOffsetLeft(el)-document.body.scrollLeft;
}	
function AnchorPosition_getPageOffsetTop (el) {
	var ot=el.offsetTop;
	while((el=el.offsetParent) != null) { ot += el.offsetTop; }
	return ot;
}
function AnchorPosition_getWindowOffsetTop (el) {
	return AnchorPosition_getPageOffsetTop(el)-document.body.scrollTop;
}
function togglePriMenuPositioned(menuid, menulinkid, repos) {
	var menu 	= document.getElementById(menuid);
	var menupos = getAnchorPosition(menulinkid);

	if (repos) {
		menu.style.top = menupos.y;
		menu.style.left = (menupos.x/2);
	}

	if (menu.style.display == "block") {
		menu.style.display = "none";
	} else {
		menu.style.display = "block";	
	}
}