// Modal Dialog Box
// copyright 8th July 2006 by Stephen Chapman
// http://javascript.about.com/
// permission to use this Javascript on your web page is granted
// provided that all of the code in this script (including these
// comments) is used without any alteration
var modalBox = {
	pageWidth: function()
	{
		return window.innerWidth != null? window.innerWidth: document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth:document.body != null? document.body.clientWidth:null;
	},
	pageHeight: function() {
		return window.innerHeight != null? window.innerHeight: document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight:document.body != null? document.body.clientHeight:null;
		},
	posLeft: function() {
		return typeof window.pageXOffset != 'undefined' ? window.pageXOffset:document.documentElement && document.documentElement.scrollLeft? document.documentElement.scrollLeft:document.body.scrollLeft? document.body.scrollLeft:0;
		},
	posTop: function() {
		return typeof window.pageYOffset != 'undefined' ? window.pageYOffset:document.documentElement && document.documentElement.scrollTop? document.documentElement.scrollTop: document.body.scrollTop?document.body.scrollTop:0;
		},
	scrollFix: function(){
		var obol=$('ol');
		obol.style.top=modalBox.posTop()+'px';
		obol.style.left=modalBox.posLeft()+'px'
		},
	sizeFix: function(){
		var obol=$('ol');
		obol.style.height=modalBox.pageHeight()+'px';
		obol.style.width=modalBox.pageWidth()+'px';
		},
	kp: function(e){
		ky=e?e.which:event.keyCode;
		if(ky==88||ky==120)modalBox.hm();
		return false
		},
	inf: function(h){
		tag=document.getElementsByTagName('select');
		for(i=tag.length-1;
		i>=0;
		i--)tag[i].style.visibility=h;
		tag=document.getElementsByTagName('iframe');
	
		for(i=tag.length-1;
		i>=0;
		i--)tag[i].style.visibility=h;
		tag=document.getElementsByTagName('object');
	
		for(i=tag.length-1;
		i>=0;
		i--)tag[i].style.visibility=h;
	
		},
	sm: function(obl, wd, ht){
		var h='hidden';
	
		var b='block';
	
		var p='px';
	
		var obol=$('ol');
	
		var obbxd = $('mbd');
	
		obbxd.innerHTML = $(obl).innerHTML;
		obol.style.height=modalBox.pageHeight()+p;
	
		obol.style.width=modalBox.pageWidth()+p;
	
		obol.style.top=modalBox.posTop()+p;
	
		obol.style.left=modalBox.posLeft()+p;
	
		obol.style.display=b;
	
		var tp=modalBox.posTop()+((modalBox.pageHeight()-ht)/2)-12;
	
		var lt=modalBox.posLeft()+((modalBox.pageWidth()-wd)/2)-12;
	
		var obbx=$('mbox');
		obbx.style.top=(tp<0?0:tp)+p;
		obbx.style.left=(lt<0?0:lt)+p;
		obbx.style.width=wd+p;
		obbx.style.height=ht+p;
		modalBox.inf(h);
		obbx.style.display=b;
		return false;
	},
	hm: function(){
		var v='visible';
		var n='none';
		$('ol').style.display=n;
		$('mbox').style.display=n;
		modalBox.inf(v);
		document.onkeypress='';
	}
};
function initmb(){
	var ab='absolute';
    var n='none';
    var obody=document.getElementsByTagName('body')[0];
    var frag=document.createDocumentFragment();
    var obol=document.createElement('div');
    obol.setAttribute('id','ol');
    obol.style.display=n;
    obol.style.position=ab;
    obol.style.top=0;
    obol.style.left=0;
    obol.style.zIndex=998;
    obol.style.width='100%';
    frag.appendChild(obol);
    var obbx=document.createElement('div');
    obbx.setAttribute('id','mbox');
    obbx.style.display=n;
    obbx.style.position=ab;
    obbx.style.zIndex=999;
    var obl=document.createElement('span');
    obbx.appendChild(obl);

    var obbxd=document.createElement('div');
    obbxd.setAttribute('id','mbd');
    obl.appendChild(obbxd);
    frag.insertBefore(obbx,obol.nextSibling);
    obody.insertBefore(frag,obody.firstChild);

    window.onscroll = modalBox.scrollFix;
    window.onresize = modalBox.sizeFix;
}