if(!document.getElementById)
{
	if(document.all)
	{
		accessObj = function()
		{
			if(typeof document.all[arguments[0]]!="undefined")
			return document.all[arguments[0]]
			else
			return null
		}
	}
	else if(document.layers)
	{
		accessObj = function()
		{
			if(typeof document[arguments[0]]!="undefined")
			return document[arguments[0]]
			else
			return null
		}
	}
}
else
{
	accessObj = function()
	{
		return document.getElementById(arguments[0]);
	}
}

function setOpacity(objname, o)
{
	var obj = accessObj(objname);
	var per = o / 100;
	if (o < 0)
	{
		o = 0;
		per = 0;
	}
	if (o>100)
	{
		o = 100;
		per = 1;
	}
    obj.style.opacity = (per);
    obj.style.MozOpacity = (per);
    obj.style.KhtmlOpacity = (per);
    obj.style.filter = 'alpha(opacity=' + o + ')';
}

function openDiv(name)
{
	var obj = accessObj(name);
	if (!isNull(obj))
	    obj.style.display = "block";
	    obj.style.zIndex = "10000";
}

function closeDiv(name)
{
	var obj = accessObj(name);
	if (!isNull(obj))
		obj.style.display = "none";
}

function isNull(val)
{
	return(val==null);
}

function getWindowSize()
{
	var windowWidth, windowHeight;
	
	if (self.innerHeight) {	// all except Explorer
		if(document.documentElement.clientWidth){
			windowWidth = document.documentElement.clientWidth; 
		} else {
			windowWidth = self.innerWidth;

        }
        windowHeight = self.innerHeight;
        
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}
	return [windowWidth,windowHeight];
}

function getPageSize()
{	        
	var xScroll, yScroll;

	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = window.innerWidth + window.scrollMaxX;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var temp = getWindowSize();
	var windowWidth = temp[0];
	var windowHeight = temp[1];
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = xScroll;		
	} else {
		pageWidth = windowWidth;
	}

	return [pageWidth,pageHeight];
}