//***********************************
function windowShowWindow(window_name){
	var objWindow = document.getElementById(window_name);
	var arrayPageSize = windowGetPageSize();
	var arrayPageScroll = windowGetPageScroll();
	
	// set height of Disclamer to take up whole page and show
	objWindow.style.height = (arrayPageSize[1] + 'px');
	objWindow.style.display = 'block';

	// Hide select boxes as they will 'peek' through the image in IE
	selects = document.getElementsByTagName("select");
  for (i = 0; i != selects.length; i++) {
          selects[i].style.visibility = "hidden";
  }
}

//***********************************
function windowHideWindow(window_name){
	var objWindow = document.getElementById(window_name);
	objWindow.style.display = 'none';

	// make select boxes visible
	selects = document.getElementsByTagName("select");
  for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
}

//***********************************
function windowGetPageSize(){	
	var xScroll, yScroll;	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		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 windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		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;
	}	
	
	// 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 = windowWidth;
	} 
	else {
		pageWidth = xScroll;
	}
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

//***********************************
function windowGetPageScroll(){
	var yScroll;
	if (self.pageYOffset){
		yScroll = self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} 
	else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}
	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}