// global variables
var gResizeInterval=null;

// save critical images in image array
function makeimagemap() {
	document.imageArray = new Array();
	document.imageArray[".pixel"]=new Image(); 
	document.imageArray[".pixel"].src="images/pixel.gif"; 
	document.imageArray[".button_left_up"]=new Image(); 
	document.imageArray[".button_left_up"].src="images/btn_left.gif"; 
	document.imageArray[".button_left_down"]=new Image(); 
	document.imageArray[".button_left_down"].src="images/btn_left_dwn.gif"; 
	document.imageArray[".button_middle_up"]=new Image(); 
	document.imageArray[".button_middle_up"].src="images/btn_middle.gif"; 
	document.imageArray[".button_middle_down"]=new Image(); 
	document.imageArray[".button_middle_down"].src="images/btn_middle_dwn.gif"; 
	document.imageArray[".button_text_up"]=new Image(); 
	document.imageArray[".button_text_up"].src="images/btn_middle.gif"; 
	document.imageArray[".button_text_down"]=new Image(); 
	document.imageArray[".button_text_down"].src="images/btn_middle_dwn.gif"; 
	document.imageArray[".button_right_up"]=new Image(); 
	document.imageArray[".button_right_up"].src="images/btn_right.gif"; 
	document.imageArray[".button_right_down"]=new Image(); 
	document.imageArray[".button_right_down"].src="images/btn_right_dwn.gif"; 
}
// get tag line args
function getArgs() {
	var args = new Object();
	var query = location.search.substring(1);
	var pairs = query.split(",");
	for(var i = 0; i < pairs.length; i++) {
		var pos = pairs[i].indexOf('=');
		if(pos == -1) continue;
		var argname = pairs[i].substring(0, pos);
		var value = pairs[i].substring(pos + 1);
		args[argname] = unescape(value);
	}
	return args;
}
function clear_selected() {
	if(document.selection != null)
		document.selection.empty();	
	else {
		var selobj=window.getSelection();
		if(selobj != null) {
			var oneRange;
			for(var i=0; i < selobj.rangeCount; i++) {
				oneRange=selobj.getRangeAt(i);
				selobj.removeRange(oneRange);
			}
		}
	}
}
// change button graphic status
function buttonpress(pObj, pStatus)
{
	var velem=pObj.getElementsByTagName("TD");
	if(pStatus=='up') {
		velem[0].childNodes[0].className="button_left_up";
		velem[1].className="button_text_up";
		velem[2].childNodes[0].className="button_right_up";
	}
	else {
		velem[0].childNodes[0].className="button_left_down";
		velem[1].className="button_text_down";
		velem[2].childNodes[0].className="button_right_down";
	}
}