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 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];}}
}


// opacity('imgwymanID', 0, 100, 1000); 

var showdelay = null;
var curID = "";
var curObj = null;
var curPath = '';
var curIsVisible = false;

function showHidBio(me, imgPath, isvisible)
{
	//if(curObj != null) if(curObj.src == me.src && curIsVisible == isvisible) return; // we did this
curObj = me;
curPath = imgPath;
curIsVisible = isvisible;

	clearTimeout(showdelay);
	showdelay = setTimeout("delayForShowHide()",300);
	//doShowHideBio(curObj, curPath, curIsVisible)
	
		//showdelay = setTimeout("pageManager('setflash_page','"+page.flashObjId+"','"+page.flashVarName+"','"+page.flashVarValue+"')",200);
}
function resetAll()
{
	document.getElementById('img1').src = 'images/m1.jpg';
	document.getElementById('img2').src = 'images/m2.jpg';
	document.getElementById('img3').src = 'images/m3.jpg';
	document.getElementById('img4').src = 'images/m4.jpg';
}
function delayForShowHide()
{
	clearTimeout(showdelay);
	resetAll();
    doShowHideBio(curObj, curPath, curIsVisible)
}
function doShowHideBio(me, imgPath, isvisible)
{

	if(isvisible == true) {
		me.style.cursor = "pointer";
		me.src = imgPath;
		//opacityTwoStep(me,imgPath, 0, 100, 1000); 
		opacityTwoStep(me,imgPath, 100, 0, 1000); 
	}
	else {
		me.style.cursor = "default";

		//opacity(me.id, 100, 0, 1000); 
		opacityTwoStep(me,imgPath, 0, 100, 1000); 

		//clearTimeout(showdelay);
		//showdelay = setTimeout("delayForShowHide()",300);
		//targetBio.style.display = "none";
	}
}

function opacity(id, opacStart, opacEnd, millisec) { 
    //speed for each frame 
    var speed = Math.round(millisec / 100); 
    var timer = 0; 

    //determine the direction for the blending, if start and end are the same nothing happens 
    if(opacStart > opacEnd) { 
        for(i = opacEnd; i <= opacStart; i++) 
            { 
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed)); 
			i++;
            timer++; 
        } 			
    } else if(opacStart < opacEnd) { 
        for(i = opacStart; i <= opacEnd; i++) 
            { 
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed)); 
			i++;
            timer++; 
        } 
    } 
} 

function opacityTwoStep(me, upImage, opacStart, opacEnd, millisec) { 
    //speed for each frame 
    var speed = Math.round(millisec / 100); 
    var timer = 0; 
    //determine the direction for the blending, if start and end are the same nothing happens 
    if(opacStart > opacEnd) { 
        for(i = opacStart; i >= opacEnd; i--) { 
            setTimeout("changeOpac(" + i + ",'" + me.id + "')",(timer * speed)); 
            timer++; 
        } 
        for(i = opacEnd; i <= opacStart; i++) 
            { 
            setTimeout("changeOpac(" + i + ",'" + me.id + "')",(timer * speed)); 
            timer++; 
        } 			
		clearTimeout(timer);
		
    } else if(opacStart < opacEnd) { 

        for(i = opacStart; i >= opacEnd; i--) { 
            setTimeout("changeOpac(" + i + ",'" + me.id + "')",(timer * speed)); 
            timer++; 
        } 		
		clearTimeout(timer);
    } 
} 

//change the opacity for different browsers 
function changeOpac(opacity, id) { 
	var imgObj = document.getElementById(id);
	if(imgObj != null) {
    	var object = imgObj.style; 
		object.opacity = (opacity / 100); 
		object.MozOpacity = (opacity / 100); 
		object.KhtmlOpacity = (opacity / 100); 
		object.filter = 'alpha(opacity=' + opacity + ')'; 
	}
} 

/* utilities */

function openCategoryPage(pageName)
{
	switch(pageName)
	{
		case 'aboutus': 
			window.open('about_us.html', target='_self');	
			break;
		case 'porfolio': 
			window.open('portfolio.html', target='_self');	
			break;
		case 'clientlist':
			window.open('client_list.html', target='_self');	
		break
			case 'contacts': 
			window.open('contacts.html', target='_self');	
		break
	}
}