function showConfirm() {
	var arrayPageSize = getPageSize();
	var pagewidth = (arrayPageSize[0]-450)/2;
	//alert(pagewidth);
	document.getElementById('dialogcover').style.left = '0pt';
	document.getElementById('dialogwindow').style.visibility = 'visible';
	document.getElementById('dialogwindow').style.left = pagewidth;
	document.getElementById('dialogwindow').style.height = document.getElementById('wrapper').offsetHeight;
	
}
function delConfirm() {
	document.getElementById('dialogcover').style.left = '-5000pt';
	document.getElementById('dialogwindow').style.visibility = 'hidden';
}