//A Generic javascript file that provides a number of functions commonly used when creating web pages.

//This section deals with image swopping

function MM_preloadImages() 
{
	var d=document; if(d.images)
	{ 
		if(!d.MM_p) d.MM_p=new Array();
    		var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
		for(i=0; i<a.length; i++)
    		if (a[i].indexOf("#")!=0)
			{ 
			d.MM_p[j]=new Image; 
			d.MM_p[j++].src=a[i];
			}
	}
}


function MM_swapImgRestore() 
{
	var i,x,a=document.MM_sr; 
	for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) 
	x.src=x.oSrc;
}


function MM_findObj(n, d) 
{ 
	var p,i,x;  
	if(!d) d=document; 
	if((p=n.indexOf("?"))>0&&parent.frames.length) 
		{
    		d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
		}
  	if(!(x=d[n])&&d.all) x=d.all[n]; 
	for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  	if(!x && document.getElementById) x=document.getElementById(n); 
	return x;
}


function MM_swapImage() 
{ 
  	var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; 
	for(i=0;i<(a.length-2);i+=3)
   	if ((x=MM_findObj(a[i]))!=null)
	{
	document.MM_sr[j++]=x; 
	if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];
	}
}

//-------------------------------------------------------------------------------------------------------------
//This section deals with the menus

function showMenuTest(eventObj) 
{
	eventObj.cancelBubble = true;

	if(changeObjectVisibility('myMenu', 'visible')) 
	{
	return true;
	}
	else
	{
	return false;
	}
}

function showMenuTest1(eventObj) 
{
	eventObj.cancelBubble = true;

	if(changeObjectVisibility('myMenu1', 'visible')) 
	{
	return true;
	}
	else
	{
	return false;
	}
}

function showMenuTest2(eventObj) 
{
	eventObj.cancelBubble = true;

	if(changeObjectVisibility('myMenu2', 'visible')) 
	{
	return true;
	}
	else
	{
	return false;
	}
}

function showMenuTest3(eventObj) 
{
	eventObj.cancelBubble = true;

	if(changeObjectVisibility('myMenu3', 'visible')) 
	{
	return true;
	}
	else
	{
	return false;
	}
}

function showMenuTest4(eventObj) 
{
	eventObj.cancelBubble = true;

	if(changeObjectVisibility('myMenu4', 'visible')) 
	{
	return true;
	}
	else
	{
	return false;
	}
}

function showMenuTest5(eventObj) 
{
	eventObj.cancelBubble = true;

	if(changeObjectVisibility('myMenu5', 'visible')) 
	{
	return true;
	}
	else
	{
	return false;
	}
}

function showMenuTest6(eventObj) 
{
	eventObj.cancelBubble = true;

	if(changeObjectVisibility('myMenu6', 'visible')) 
	{
	return true;
	}
	else
	{
	return false;
	}
}

//---------------------------------------------------------------------------------
//Hide the menus

function hideMenuTest(eventObj) 
{
	eventObj.cancelBubble = true;

    	if(changeObjectVisibility('myMenu', 'hidden')) 
	{
	return true;
	}
	else
	{ 
	return false;
    	}
}

function hideMenuTest1(eventObj) 
{
	eventObj.cancelBubble = true;

    	if(changeObjectVisibility('myMenu1', 'hidden')) 
	{
	return true;
	}
	else
	{ 
	return false;
    	}
}

function hideMenuTest2(eventObj) 
{
	eventObj.cancelBubble = true;

    	if(changeObjectVisibility('myMenu2', 'hidden')) 
	{
	return true;
	}
	else
	{ 
	return false;
    	}
}

function hideMenuTest3(eventObj) 
{
	eventObj.cancelBubble = true;

    	if(changeObjectVisibility('myMenu3', 'hidden')) 
	{
	return true;
	}
	else
	{ 
	return false;
    	}
}

function hideMenuTest4(eventObj) 
{
	eventObj.cancelBubble = true;

    	if(changeObjectVisibility('myMenu4', 'hidden')) 
	{
	return true;
	}
	else
	{ 
	return false;
    	}
}

function hideMenuTest5(eventObj) 
{
	eventObj.cancelBubble = true;

    	if(changeObjectVisibility('myMenu5', 'hidden')) 
	{
	return true;
	}
	else
	{ 
	return false;
    	}
}

function hideMenuTest6(eventObj) 
{
	eventObj.cancelBubble = true;

    	if(changeObjectVisibility('myMenu6', 'hidden')) 
	{
	return true;
	}
	else
	{ 
	return false;
    	}
}

//---------------------------------------------------------------------------------
//The rest


function getStyleObject(objectId) 
{
    	if(document.getElementById && document.getElementById(objectId)) 
	{
	return document.getElementById(objectId).style;
	} 
	else if (document.all && document.all(objectId)) 
	{
	return document.all(objectId).style;
	} 
	else if (document.layers && document.layers[objectId]) 
	{
	return document.layers[objectId];
	} 
	else 
	{
	return false;
	}
}


function changeObjectVisibility(objectId, newVisibility) 
{
    	// get a reference to the cross-browser style object and make sure the object exists
    	var styleObject = getStyleObject(objectId);
    	if(styleObject) 
	{
	styleObject.visibility = newVisibility;
	return true;
    	} 
	else 
	{
	return false; //we couldn't find the object, so we can't change its visibility
    	}
}