//build dimmer
function dimmerbuild(divid) {
var divid = document.getElementById(divid);
width = window.screen.width;
height = window.screen.height;
dimmer = document.createElement("div");
dimmer.style.opacity = ".5"
dimmer.style.filter ="alpha(opacity=50)";
dimmer.setAttribute("id", "dimmer");
dimmer.style.width = "100%";
dimmer.style.height = "450%";
dimmer.style.position = "absolute";
dimmer.style.zIndex = "3000";
dimmer.style.top = "0px";
dimmer.style.left = "0px";
dimmer.style.backgroundColor = "black";
dimmer.style.display = "none";
dimmer.style.padding = "0px";
dimmer.style.margin = "0px";
var first1 = document.getElementsByTagName("Body");
var first1obj = first1[0].firstChild;
document.body.insertBefore(dimmer, first1obj);
windowdiv(divid);
}

function getWindowHeight(){
var windowHeight = 0;
if(typeof(window.innerHeight) == 'number') {
windowHeight = window.innerHeight;}
else {
if (document.documentElement && document.documentElement.clientHeight) {
windowHeight = document.documentElement.clientHeight;}
else {
if (document.body && document.body.clientHeight){
windowHeight = document.body.clientHeight;
}
}
}
return windowHeight;
}

function windowdiv(divid) {
var dimmer = document.getElementById("dimmer");

divid.style.display = "block";
divid.style.zIndex = "5000";



dimmer.style.display = "block";
dimmer.style.zIndex = "3000";
dimmer.style.position = "absolute";


windowHeight = getWindowHeight();
var alertdivHeight = divid.offsetHeight;
if (windowHeight-alertdivHeight > 0) {
divid.style.position = 'absolute';		
if (navigator.userAgent.indexOf('Safari') != -1) {
var top = document.body.scrollTop;
				} else {
var top = document.documentElement.scrollTop;
				}
divid.style.top = ((windowHeight/2)-(alertdivHeight/2)+top) + "px";

}
}

function closeparents(divid) {
var divid = document.getElementById(divid);
divid.style.display = "none";
var dimmer = document.getElementById("dimmer");
dimmer.style.display = "none";
}