/**
 * @author luke
 */
var currwidth;

function start(){
	window.onresize = function(){
		if (currwidth != document.documentElement.clientWidth) {
			resizeMain();
		}
		currwidth = document.documentElement.clientWidth;
	}
}

 function resizeMain() 
 {
	resizeHeader();
	resizeFooter();
 }

 function resizeHeader()
 {
 	var width = document.documentElement.clientWidth;
	var hleft = document.getElementById("header_left_bg");
	var hright = document.getElementById("header_right_bg");
	if (width > 980)
	{
		var w = Math.round((width - 980)/2);
		var value = w + "px";
		if (hleft != null) hleft.style.width = value;
		if (hright != null) hright.style.width = value;
	}
	else
	{
		if (hleft != null) hleft.style.width = '0px';
		if (hright != null) hright.style.width = '0px';
	}
 }
 
  function resizeFooter()
 {
 	var width = document.documentElement.clientWidth;
	var fleft = document.getElementById("footer_left_bg");
	var fright = document.getElementById("footer_right_bg");
	if (width > 980)
	{
		var w = Math.round((width - 980)/2);
		var value = w + "px";
		if (fleft != null) fleft.style.width = value;
		if (fright != null) fright.style.width = value;
	}
	else
	{
		if (fleft != null) fleft.style.width = '0px';
		if (fright != null) fright.style.width = '0px';
	}
 }
 
 function showAskForm()
 {
 	var form = document.getElementById("ask_form");
	form.style.display = "block";
 }