var skin_no=1;

function change_skin()
	{var backColor= new Array();
	backColor[1] = '#52617E';
	backColor[2] = '#000000';
	backColor[3] = '#4d78a3';
	backColor[4] = '#d27067';
	var el=document.getElementById('menux');
	if(el)
	el.style.backgroundColor=backColor[skin_no];	
	skin=document.getElementById('calcopen_div');
	skin2=document.getElementById('calcclose_div');
	skin3=document.getElementById('simulation');
	if(skin_no==1)
		{
		skin.style.backgroundImage='url(img/skins/skin2.jpg)';
		skin3.style.backgroundImage='url(img/skins/skin2.jpg)';
		skin2.style.backgroundImage='url(img/skins/s2.jpg)';
		skin_no++;
		}
	else if(skin_no==2)
		{
		skin.style.backgroundImage='url(img/skins/skin3.jpg)';	
		skin3.style.backgroundImage='url(img/skins/skin3.jpg)';	
		skin2.style.backgroundImage='url(img/skins/s3.jpg)';
		skin_no++;
		}		
	else if(skin_no==3)
		{
		skin.style.backgroundImage='url(img/skins/skin4.jpg)';
		skin3.style.backgroundImage='url(img/skins/skin4.jpg)';
		skin2.style.backgroundImage='url(img/skins/s4.jpg)';
		skin_no++;
		}
	else if(skin_no==4)
		{
		skin.style.backgroundImage='url(img/skins/skin1.jpg)';
		skin3.style.backgroundImage='url(img/skins/skin1.jpg)';
		skin2.style.backgroundImage='url(img/skins/s1.jpg)';
		skin_no=1;
		}
	}
	
function set_skin(skinnum)
	{var backColor = new Array();
	backColor[1] = '#52617E';
	backColor[2] = '#000000';
	backColor[3] = '#4d78a3';
	backColor[4] = '#d27067';
	var el=document.getElementById('menux');
	if(el)
	el.style.backgroundColor=backColor[skinnum];	
	skin=document.getElementById('calcopen_div');
	skin2=document.getElementById('calcclose_div');
	skin3=document.getElementById('simulation');
	skin.style.backgroundImage='url(img/skins/skin'+skinnum+'.jpg)';
	skin3.style.backgroundImage='url(img/skins/skin'+skinnum+'.jpg)';
	skin2.style.backgroundImage='url(img/skins/s'+skinnum+'.jpg)';
	skin_no=skinnum;
	}
	
function setmenucolor()
	{
	var backColor = new Array();
	backColor[1] = '#52617E';
	backColor[2] = '#000000';
	backColor[3] = '#4d78a3';
	backColor[4] = '#d27067';
	var el=document.getElementById('menux');
	el.style.backgroundColor=backColor[skin_no];
	}
	
function save_skin()
	{
	sav=document.getElementById('saveskin');
	sav.innerHTML='Patientez svp...';
	window.location='changeskin.php?skinnum='+skin_no;
	}