var	ie=document.all
var	dom=document.getElementById
var	ns4=document.layers
var ns6=(!document.all && document.getElementById)

window.onresize = sizeCover;
	
function showPop(name) {
	var disp = document.getElementById(name);
	var cover = document.getElementById("cover");
	var lintopacity = 40;

	
	if (disp.style.display == 'none') {
		disp.style.display = '';
		cover.style.display = '';
		centerPop(disp);
		sizeCover();
		hideSelects('none')
		// SET OPACITY BY BROWSER //
		if (ns6)
			cover.style.MozOpacity = lintopacity/100 ;
		else
			cover.style.filter="alpha(opacity=" + lintopacity + ")";
	} else {
	    hideSelects('');
		disp.style.display = 'none';
		cover.style.display = 'none';
	}
}

function hideCover() {
    var cover = document.getElementById("cover");
    cover.style.display = 'none';
}

function centerPop(popup) {

    var windowheight, windowwidth;
    var scrollLeft, scrollTop;
	var vCenter, hCenter;

	//Aaron Kolhbecks way
	//windowheight = WinHeight();
	//windowwidth = WinWidth();

	windowheight = f_clientHeight();
	windowwidth = f_clientWidth();
	scrollLeft = f_scrollLeft();
	scrollTop = f_scrollTop();

	//alert(scrollLeft);
	//alert(scrollTop);

    //Aaron Kolhbecks way
   	//hCenter = (windowwidth/2) - (parseInt(popup.style.width)/2) + document.body.scrollLeft;
   	//vCenter = (windowheight / 2) - (parseInt(popup.style.height) / 2) + document.body.scrollTop;

   	hCenter = (windowwidth / 2) - (parseInt(popup.style.width) / 2) + scrollLeft;
   	vCenter = (windowheight / 2) - (parseInt(popup.style.height) / 2) + scrollTop;

   	if (hCenter<=0) hCenter=0;
   	if (vCenter <= 0) vCenter = 0;
      
   	popup.style.left = hCenter + 'px';
   	popup.style.top = vCenter + 'px';

   	//alert(popup.style.left);
   	//alert(popup.style.top);

   	

}

function sizeCover() {
    var windowheight, windowwidth;
    var cover;

	if (document.getElementById('cover')!= null){
		cover=document.getElementById('cover');
	    
		if (cover.style.display=='none')
			return;
	    
		windowheight = WinHeight();
		windowwidth = WinWidth();

		if (document.body.scrollHeight>windowheight) windowheight=document.body.scrollHeight;
		if (document.body.scrollWidth>windowwidth) windowwidth=document.body.scrollWidth;

		cover.style.width=windowwidth + 'px';
		cover.style.height=windowheight + 'px';
	}
}

function WinHeight() {
    var windowheight;

    if( typeof( window.innerWidth ) == 'number' ) {
        //Non-IE
        windowheight = window.innerHeight;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        //IE 6+ in 'standards compliant mode'
        windowheight = document.documentElement.clientHeight;
        } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        //IE 4 compatible
        windowheight = document.body.clientHeight;
    }
	return windowheight;
} 

function WinWidth() {
    var windowwidth;

    if( typeof( window.innerWidth ) == 'number' ) {
        windowwidth = window.innerWidth;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        windowwidth = document.documentElement.clientWidth;
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        windowwidth = document.body.clientWidth;
    }
	return windowwidth;
} 

function showCal(name) {
	var disp = document.getElementById(name).style.display;
	
	if (disp == 'none') {
		document.getElementById(name).style.display = '';
	} else {
		document.getElementById(name).style.display = 'none';
	}
}

function hideSelects(action) {
	//documentation for this script at http://www.shawnolson.net/a/1198/
	//possible values for action are 'hidden' and 'visible'
	if (action!=''){action='none';}
	for (var S = 0; S < document.forms.length; S++){
		for (var R = 0; R < document.forms[S].length; R++) {
			if (document.forms[S].elements[R].options && document.forms[S].elements[R].getAttribute('hide') != 'false') {
				document.forms[S].elements[R].style.display = action;
			}
		}
	}
}
//document.getElementById('elementId').getAttribute( 'attribute')

function CaptureKeys(button) {
	 if (event.keyCode == 13) {
		  document.getElementById(button).onclick();
		  return false;
	 }
}








//New way of getting correct client width/height,scroll left/top



function f_clientWidth() {
    return f_filterResults(
		window.innerWidth ? window.innerWidth : 0,
		document.documentElement ? document.documentElement.clientWidth : 0,
		document.body ? document.body.clientWidth : 0
	);
}
function f_clientHeight() {
    return f_filterResults(
		window.innerHeight ? window.innerHeight : 0,
		document.documentElement ? document.documentElement.clientHeight : 0,
		document.body ? document.body.clientHeight : 0
	);
}
function f_scrollLeft() {
    return f_filterResults(
		window.pageXOffset ? window.pageXOffset : 0,
		document.documentElement ? document.documentElement.scrollLeft : 0,
		document.body ? document.body.scrollLeft : 0
	);
}
function f_scrollTop() {
    return f_filterResults(
		window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0
	);
}
function f_filterResults(n_win, n_docel, n_body) {
    var n_result = n_win ? n_win : 0;
    if (n_docel && (!n_result || (n_result > n_docel)))
        n_result = n_docel;
    return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}