/*
**
General scripts for www.insightpd.com/medical
**
**/

function init() {
	createRollOvers();
	emailCloak();
}

function MM_swapImgRestore() { //v3.0
   var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function emailCloak() {
	if (document.getElementById) {
		var alltags = document.all? document.all : document.getElementsByTagName("*");
		for (i=0; i < alltags.length; i++) {
		  if (alltags[i].className == "emailCloak") {
			var oldText = alltags[i].firstChild;
			var emailAddress = alltags[i].firstChild.nodeValue;
			var user = emailAddress.substring(0, emailAddress.indexOf("("));
			var website = emailAddress.substring(emailAddress.indexOf(")")+1, emailAddress.length);
			var newText = user+"@"+website;
			var a = document.createElement("a");
			a.href = "mailto:"+newText;
			a.className = "email";
			var address = document.createTextNode(newText);
			a.appendChild(address);
			alltags[i].replaceChild(a,oldText);
		  }
		}
	}
}
function blueLine(id) {
	
	document.getElementById("nav1").className = "NavNoSelect";
	document.getElementById("nav2").className = "NavNoSelect";
	document.getElementById("nav3").className = "NavNoSelect";
	document.getElementById("nav4").className = "NavNoSelect";
	document.getElementById("nav5").className = "NavNoSelect";

	if (id == 1) document.getElementById("nav1").className = "NavSelect";
	if (id == 2) document.getElementById("nav2").className = "NavSelect";
	if (id == 3) document.getElementById("nav3").className = "NavSelect";
	if (id == 4) document.getElementById("nav4").className = "NavSelect";
	if (id == 5) document.getElementById("nav5").className = "NavSelect";
}
function createRollOvers(){
        if(document.getElementById){
                var images = document.getElementsByTagName('IMG');
                var buttons = document.getElementsByTagName('INPUT');
        }else if(document.all){i
                var images = document.all.tags('IMG');
                var buttons = document.all.tags('INPUT');
        }else return;
        preloads = new Object();
        for (var i = 0; i < images.length; i++){
                var imageOffSrc = images[i].src + "";
                if(imageOffSrc.indexOf("_off") != -1){
                        var imageOverSrc = imageOffSrc.replace(/_off/g, "_over");
                        preloads['imageOff_' + i] = new Image();
                        preloads['imageOff_' + i].src = imageOffSrc;
                        preloads['imageOver_' + i] = new Image();
                        preloads['imageOver_' + i].src = imageOverSrc;
                        images[i].onmouseover = function(){this.src = this.src.replace(/_off/g, "_over");}
                        images[i].onmouseout = function(){this.src = this.src.replace(/_over/g, "_off");}
                }
        }
        for (var i = 0; i < buttons.length; i++){
                if(buttons[i].src){
                var imageOffSrc = buttons[i].src + "";
                if(imageOffSrc.indexOf("_off") != -1){
                        var imageOverSrc = imageOffSrc.replace(/_off/g, "_over");
                        preloads['imageOff_' + i] = new Image();
                        preloads['imageOff_' + i].src = imageOffSrc;
                        preloads['imageOver_' + i] = new Image();
                        preloads['imageOver_' + i].src = imageOverSrc;
                        buttons[i].onmouseover = function(){this.src = this.src.replace(/_off/g, "_over");}
                        buttons[i].onmouseout = function(){this.src = this.src.replace(/_over/g, "_off");}
                }
                }
        }
}

function openCenter(link, width, Height){
	var browser=navigator.appName;
	if (browser=="Netscape"){
   		var centerWidth = ((window.outerWidth - width) / 2)+window.screenX;
    		var centerHeight = ((window.outerHeight - Height) / 2)+window.screenY;
    		var newWindow = window.open(link,null,"left="+centerWidth+",top="+centerHeight+",status=no,titlebar=no,toolbar=no,menubar=no,location=no,status=no,resizable=yes,scrollbars=no,width="+width+",height="+Height);	
	}else if(browser=="Microsoft Internet Explorer"){
		var centerWidth = ((document.body.clientWidth - width) / 2)+window.screenLeft;
    		var centerHeight = ((document.body.clientHeight - Height) / 2)+window.screenTop;
    		var newWindow = window.open(link,null,"left="+centerWidth+",top="+centerHeight+",status=no,titlebar=no,toolbar=no,menubar=no,location=no,status=no,resizable=yes,scrollbars=no,width="+width+",height="+Height);	
	}
   if (window.focus) {newWindow.focus();}
   return false;
}

window.onload = init;