var defaultFontSize14 = 14;
var defaultFontSize22 = 22;
var defaultFontSize12 = 12;
var defaultFontSize16 = 16;

var minSize = 10;
var maxSize = 20;
var minSize2 = 18;
var maxSize2= 28;
var minSize3 = 8;
var maxSize3= 18;
var minSize4 = 12;
var maxSize4= 22;


 

function ChangeFontSize(amt) 
{
	var currentSize = getClassProperty("fontsize14","fontSize");
	var currentSize2 = getClassProperty("fontsize22","fontSize");
	var currentSize4 = getClassProperty("fontsize16","fontSize");
	
	currentSize = currentSize.replace("px","");
	currentSize2 = currentSize2.replace("px","");
	currentSize4 = currentSize4.replace("px","");
	
	var newSize = parseInt(currentSize) + amt;
	var newSize2 = parseInt(currentSize2) + amt;
	var newSize4 = parseInt(currentSize4) + amt;
	
	if (newSize >= minSize && newSize <= maxSize)
	{
		changeClassProperty("fontsize14","fontSize",newSize + "px");

		setCookie("fontSize",newSize,180,"/");
	}
	
	if (newSize2 >= minSize2 && newSize2 <= maxSize2)
	{
		changeClassProperty("fontsize22","fontSize",newSize2 + "px");
		
		setCookie("fontSize2",newSize2,180,"/");
	}	
	
	if (newSize4 >= minSize4 && newSize4 <= maxSize4)
  	{
	   changeClassProperty("fontsize16","fontSize",newSize4 + "px");
	
	    setCookie("fontSize4",newSize4,180,"/");
	}
}
  
// get the value of a property of a CSS Rule
function getClassProperty(sClassName,sProperty) 
{
	sClassName="."+sClassName;
	var sheets = document.styleSheets;
	var rules;
	var styleObj;
	for (i=0;i< sheets.length; i++) 
	{
		rules=sheets[i].cssRules || sheets[i].rules;
		for (var j=0; j<rules.length; j++) 
		{
			if (rules[j].selectorText && rules[j].selectorText==sClassName) 
			{
				styleObj=rules[j].style;

				return styleObj[sProperty];
			}
		}
	}
}

// set the value of a property of a CSS Rule
function changeClassProperty(sClassName,sProperty,sValue) 
{
	sClassName="."+sClassName;
	var sheets = document.styleSheets;
	var rules;
	var styleObj;
	for (i=0;i< sheets.length; i++)
	{
		rules=sheets[i].cssRules || sheets[i].rules;
		for (var j=0; j<rules.length; j++) 
		{
			if (rules[j].selectorText && rules[j].selectorText==sClassName) 
			{
				styleObj=rules[j].style;
				styleObj[sProperty]=sValue;
				break;
			}
		}
	}
}

function setCookie(name,value,days,path,domain,secure) 
{
  var expires, date;
  if (typeof days == "number") 
  {
    date = new Date();
    date.setTime( date.getTime() + (days*24*60*60*1000) );
		expires = date.toGMTString();
  }
  document.cookie = name + "=" + escape(value) +
    ((expires) ? "; expires=" + expires : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}

function getCookie(name) 
{
  var nameq = name + "=";
  var c_ar = document.cookie.split(';');
  for (var i=0; i<c_ar.length; i++) 
  {
    var c = c_ar[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameq) == 0) return unescape( c.substring(nameq.length, c.length) );
  }
  return null;
}

function setUserOptions()
{
	cookie = getCookie("fontSize");
	cookie2 = getCookie("fontSize2");
	cookie3 = getCookie("fontSize3");
	cookie4 = getCookie("fontSize4");

	currentFontSize = cookie ? cookie : defaultFontSize14;
	currentFontSize2 = cookie2 ? cookie2 : defaultFontSize22;
	currentFontSize3 = cookie3 ? cookie3 : defaultFontSize12;
	currentFontSize4 = cookie4 ? cookie4 : defaultFontSize16;

	changeClassProperty("fontsize16","fontSize",currentFontSize4 + "px");
	changeClassProperty("fontsize12","fontSize",currentFontSize3 + "px");
	changeClassProperty("fontsize14","fontSize",currentFontSize);
	
	var p = document.getElementsByTagName('p');
    for(i=0;i<p.length;i++) {
      p[i].style.fontSize = currentFontSize;
    }
	
	var h2 = document.getElementsByTagName('h2');
    for(i=0;i<h2.length;i++) {
      h2[i].style.fontSize = currentFontSize2;
    }
	var h3 = document.getElementsByTagName('h3');
    for(i=0;i<h3.length;i++) {
      h3[i].style.fontSize = currentFontSize4;
    }
}


function increaseFontSize() {
   var newSize = defaultFontSize14;
   var newSize2 = defaultFontSize22;
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = defaultFontSize14;
      }
      if(s!=maxSize) {
         s += 2;
      }
      p[i].style.fontSize = s+"px"
	  newSize = p[i].style.fontSize;
   }
   
   var h2 = document.getElementsByTagName('h2');
   for(i=0;i<h2.length;i++) {
      if(h2[i].style.fontSize) {
         var s = parseInt(h2[i].style.fontSize.replace("px",""));
      } else {
         var s = defaultFontSize22;
      }
      if(s!=maxSize2) {
         s += 2;
      }
      h2[i].style.fontSize = s+"px"
	  newSize2 = h2[i].style.fontSize;
   }
   
   var h3 = document.getElementsByTagName('h3');
   for(i=0;i<h3.length;i++) {
      if(h3[i].style.fontSize) {
         var s = parseInt(h3[i].style.fontSize.replace("px",""));
      } else {
         var s = defaultFontSize16;
      }
      if(s!=maxSize4) {
         s += 2;
      }
      h3[i].style.fontSize = s+"px"
	  newSize4 = h3[i].style.fontSize;
	 
   }
		 
   var currentSize3 = getClassProperty("fontsize12","fontSize");
   currentSize3 = currentSize3.replace("px","");
   var newSize3 = parseInt(currentSize3) + 2;
   if (newSize3 >= minSize3 && newSize3 <= maxSize3)
   {
	   changeClassProperty("fontsize12","fontSize",newSize3 + "px");

	   setCookie("fontSize3",newSize3,180,"/");
   }
   
   changeClassProperty("fontsize14","fontSize",newSize);
   setCookie("fontSize",newSize,180,"/");
   setCookie("fontSize2",newSize2,180,"/");
   setCookie("fontSize4",newSize4,180,"/");
}

function decreaseFontSize() {
   var newSize = defaultFontSize14;
   var newSize2 = defaultFontSize22;
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = defaultFontSize14;
      }
      if(s!=minSize) {
         s -= 2;
      }
      p[i].style.fontSize = s+"px"
	  newSize = p[i].style.fontSize;
   }
   
   var h2 = document.getElementsByTagName('h2');
   for(i=0;i<h2.length;i++) {
      if(h2[i].style.fontSize) {
         var s = parseInt(h2[i].style.fontSize.replace("px",""));
      } else {
         var s = defaultFontSize22;
      }
      if(s!=minSize2) {
         s -= 2;
      }
      h2[i].style.fontSize = s+"px"
	  newSize2 = h2[i].style.fontSize;
   }
   
   var h3 = document.getElementsByTagName('h3');
   for(i=0;i<h3.length;i++) {
      if(h3[i].style.fontSize) {
         var s = parseInt(h3[i].style.fontSize.replace("px",""));
      } else {
         var s = defaultFontSize16;
      }
      if(s!=minSize4) {
         s -= 2;
      }
      h3[i].style.fontSize = s+"px"
	  newSize4 = h3[i].style.fontSize;
   }
   
   var currentSize3 = getClassProperty("fontsize12","fontSize");
	
   currentSize3 = currentSize3.replace("px","");
	
   var newSize3 = parseInt(currentSize3) - 2;
	
   if (newSize3 >= minSize3 && newSize3 <= maxSize3)
   {
	   changeClassProperty("fontsize12","fontSize",newSize3 + "px");

	   setCookie("fontSize3",newSize3,180,"/");
   }

   changeClassProperty("fontsize14","fontSize",newSize);
   setCookie("fontSize",newSize,180,"/");
   setCookie("fontSize2",newSize2,180,"/");
   setCookie("fontSize4",newSize4,180,"/");
}

function PrintThisPage() 
{ 
   var sOption="toolbar=yes,location=no,directories=yes,menubar=yes,"; 
       sOption+="scrollbars=yes,width=750,height=600,left=100,top=25"; 

   var sWinHTML = document.getElementById('contentstart').innerHTML; 
   
   var winprint=window.open("","",sOption); 
       winprint.document.open(); 
       winprint.document.write('&lt;html&gt;&lt;LINK href="Documents/EquiCMSv2/Layout.css" rel=Stylesheet&gt;&lt;body&gt;'); 
       winprint.document.write(sWinHTML);          
       winprint.document.write('&lt;/body&gt;&lt;/html&gt;'); 
       winprint.document.close(); 
       winprint.focus(); 
}

//preload normal image
var image1 = new Image();
image1.src="/exhibitions/nickcave/images/common/credits_logo_equ_on.gif";

var image2 = new Image();
image2.src="/exhibitions/nickcave/images/common/credits_logo_rtr_on.gif";

var image3 = new Image();
image3.src="/exhibitions/nickcave/images/common/credits_logo_cop_off.gif";

var image4 = new Image();
image4.src="/exhibitions/nickcave/images/common/credits_logo_good_on.gif";

var image5 = new Image();
image5.src="/exhibitions/nickcave/images/common/credits_logo_ea_on.gif";

var image6 = new Image();
image6.src="/exhibitions/nickcave/images/common/credits_logo_captain_on.gif";

var image7 = new Image();
image7.src="/exhibitions/nickcave/images/common/credits_logo_omg_on.gif";

var image8 = new Image();
image8.src="/exhibitions/nickcave/images/common/credits_logo_little_on.gif";

var image9 = new Image();
image9.src="/exhibitions/nickcave/images/common/credits_logo_were_on.gif";

var image10 = new Image();
image10.src="/exhibitions/nickcave/images/common/credits_logos_det_on.gif";

var image11 = new Image();
image11.src="/exhibitions/nickcave/images/common/credits_logos_artsedge_on.gif";

var image12 = new Image();
image12.src="/exhibitions/nickcave/images/common/credits_logos_visions_on.gif";

var image13 = new Image();
image13.src="/exhibitions/nickcave/images/common/credits_logos_arts_on.gif";

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_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_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];}
}

//window.onload = PreloadImages();

function ConfirmDelete(doc, message){
	var boolAnswer = false;
	var where_to= confirm(message);
	if(where_to){
		doc.formContent.submit();
		boolAnswer = true;
	}
	
	return boolAnswer;
}