function toggle(div_id) {
	var el = document.getElementById(div_id);
	if ( el.style.display == 'none' ) {	el.style.display = 'block';}
	else {el.style.display = 'none';}
}
function popupload() {
	var blanket = document.getElementById('blanket');
	if (blanket.style.opacity<.65) {
	    var blanket = document.getElementById('blanket');
	    blanket.style.filter = "alpha(opacity="+(parseFloat(blanket.style.opacity)*100)+")";
	    setTimeout("UpdateBGPercent();",80);
		}
}

function UpdateBGPercent(){
var blanket = document.getElementById('blanket');
blanket.style.opacity = parseFloat(blanket.style.opacity) + .04;
popupload();
}
function blanket_size(popUpDivVar) {
	var blanket = document.getElementById('blanket');
	blanket.style.height = "100%";
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height = parseFloat(blanket.style.height)/2500;
	popUpDiv.style.top = popUpDiv_height + 'px';
	
}
function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width = window_width/2500;
	popUpDiv.style.left = window_width + 'px';
}
function popup(windowname) {
	var blanket = document.getElementById('blanket');
    blanket.style.opacity=0;
    blanket_size(windowname);
	window_pos(windowname);
	toggle('blanket');
	toggle(windowname);
	//popupload();	
	setTimeout("UpdateBGPercent();",80);
}