function scrnsize()
{
	var screen_width = screen.width;

  if (screen_width < 1024) {
		setActiveStyleSheet('lowres'); 
	}
	else {
		setActiveStyleSheet('default'); 
	}
}

function setActiveStyleSheet(title) {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function numcheck(num, maxnum)
{
	if (num > (maxnum - 1))
		{
		num = num - maxnum;
		}
	return num;
}

function startpics(index, NoOfPics, picindex)
{
	newindex = index;
	NumPics = NoOfPics;
	if (picindex == 4)
		{ 
		picindex = 1;
		newindex = numcheck(newindex + 1, NumPics);
		}
	else { 
		newindex = newindex;
		}		
	newpicindex = picindex + 1;
	changePics(newindex, NumPics, picindex);
	setTimeout("startpics(newindex, NumPics, newpicindex)", 4000);
}

function changePics(i, NumPics, picindex)
{
	NumofPics = NumPics
	var picscr = new Array()
	picscr[0] = "./images/a1.jpg"
	picscr[1] = "./images/a2.jpg"
	picscr[2] = "./images/a3.jpg"
	picscr[3] = "./images/a4.jpg"
	picscr[4] = "./images/b1.jpg"
	picscr[5] = "./images/b2.jpg"
	picscr[6] = "./images/b3.jpg"
	picscr[7] = "./images/b4.jpg"
	picscr[8] = "./images/c1.jpg"
	picscr[9] = "./images/c2.jpg"
	picscr[10] = "./images/c3.jpg"
	picscr[11] = "./images/c4.jpg"
	
	picname = 'pic' + picindex;
	document.getElementById(picname).style.filter="blendTrans(duration=2)";
	document.getElementById(picname).filters.blendTrans.Apply();
	
	switch (picindex) {
	case 1:
		offset = 0;
		break;
	case 2:
		offset = 4;
		break;
	case 3:
		offset = 8;
	}
	picscrarray = (numcheck(i, NumofPics)) + offset;
	document.getElementById(picname).src= picscr[picscrarray];
	document.getElementById(picname).filters.blendTrans.Play();
}

function rand(num) {
	return Math.floor(Math.random() * num) + 1;
}	


function randpics() {
	random_number = rand(7);
	document.getElementById('pic1').src= "./images/a" + random_number +".jpg";
	document.getElementById('pic2').src= "./images/b" + random_number +".jpg";
	document.getElementById('pic3').src= "./images/c" + random_number +".jpg";
}

function bridalpics() {
	random_number = rand(6);
	document.getElementById('bridalpic').src= "./images/wedding-dresses-yorkshire" + random_number +".jpg";
}

function ahpics() {
	random_number = rand(4);
	document.getElementById('ahpic').src= "./images/alan-hannah-" + random_number +".jpg";
}

function mainpics(NoPics) {
	random_number = rand(NoPics);
	document.getElementById('mainpic').src= "./images/mainpic" + random_number +".jpg";
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);


function changeToPointer(pageItem)
  {
  pageItem.style.cursor="pointer";
  }


function changeToNormal(pageItem)
  {
  pageItem.style.cursor="default";
  }

function chgbridalpic(picscr) {
    document.getElementById('bridalpic').style.filter="blendTrans(duration=0.5)";
	if (document.all) document.getElementById('bridalpic').filters.blendTrans.Apply();
	
	document.getElementById('bridalpic').src= picscr;
	if (document.all) document.getElementById('bridalpic').filters.blendTrans.Play();
}