function showPopup(popup) {
	
	//document.documentElement.clientHeight -- видимая область
	//document.body.clientHeight -- высота боди
	//hght = (document.body.clientHeight < document.documentElement.clientHeight) ? document.documentElement.clientHeight : document.body.clientHeight;
	//alert(document.body.clientHeight+'\n'+document.body.offsetHeight+'\n'+document.documentElement.clientHeight+'\n'+document.documentElement.offsetHeight)
	hght = $('#wrap').height();
	blackBack = $('<div id="blackBack"></div>');
	blackBack.height(hght).click(closePopup).appendTo('body');
	//iframeBack = $('<iframe id="iframeBack"></iframe>');
	//iframeBack.height(hght).appendTo('body');
	currentOffset2 = 0;
	currentOffset = document.documentElement.scrollTop || document.body.scrollTop;
	var windowHeight;
	windowHeight = document.documentElement.clientHeight;
	if (windowHeight < $('#'+popup).height()) {
		currentOffset = (currentOffset + 10);
	} else {
		currentOffset2 = parseInt((windowHeight - $('#'+popup).height()) / 2);
	}
	pLeft = (document.body.clientWidth - $('#'+popup).width()) / 2;
	$('#'+popup).css({top:currentOffset+currentOffset2,left:pLeft}).show();
}

function closePopup() {
	$('#blackBack').remove();
	$('.popup').hide();
}

function setCenter(item) {
	windowHeight = document.documentElement.clientHeight;
	currentOffset = document.documentElement.scrollTop || document.body.scrollTop;
	currentOffset = currentOffset + parseInt((windowHeight - $(item).height()) / 2);
	pLeft = (document.body.clientWidth - $(item).width()) / 2;
	//$(item).css({top:currentOffset,left:pLeft}).show();
}