// JavaScript Document

// ----- Script by Mark Beasley -----

function showMouseXY(e) {
	var posx = 0;
	var posy = 0;
	if (!e) var e = window.event;
	if (e.pageX || e.pageY) 	{
		posx = e.pageX;
		posy = e.pageY;
	}
	else if (e.clientX || e.clientY) 	{
		posx = e.clientX + document.body.scrollLeft
			+ document.documentElement.scrollLeft;	
		posy = e.clientY + document.body.scrollTop
			+ document.documentElement.scrollTop;
	}
	// displays mouseX and mouseY when mouse is clicked (for positioning maps)
	alert("x: "+posx + " y: "+posy);
}


function imgState(which){
	img_src = document.getElementById('src_img');
	if(which=='null'){
		// first image
		img_src.src = '../images/menu_port1.gif';
	}else{
		// new image
		img_src.src = '../images/'+which+'.gif';
	}
}


// ----- Image Pre-load

if (document.images)
{
  pic1= new Image(145,105); 
  pic1.src="http://www.mingli-chang.com/images/menu_neut.gif"; 
  pic2= new Image(145,105); 
  pic2.src="http://www.mingli-chang.com/images/menu_phil1.gif"; 
  pic3= new Image(145,105); 
  pic3.src="http://www.mingli-chang.com/images/menu_phil2.gif"; 
  pic4= new Image(145,105); 
  pic4.src="http://www.mingli-chang.com/images/menu_port1.gif"; 
  pic5= new Image(145,105); 
  pic5.src="http://www.mingli-chang.com/images/menu_port2.gif"; 
  pic6= new Image(145,105); 
  pic6.src="http://www.mingli-chang.com/images/menu_iden1.gif"; 
  pic7= new Image(145,105); 
  pic7.src="http://www.mingli-chang.com/images/menu_iden2.gif"; 
}