// JavaScript Document
function chancestyle(sitil)
	{
		var sitilic;
		sitilic=sitil;
		switch(sitilic)
			{
				case 'sitil1':
				  document.getElementById('ss').href = '_css/sitil1.css';
				  setCookie('sitil',"",-1)
				  setCookie('sitil',"sitil1",365);
		  		  sitil=getCookie('sitil');
				  //alert(sitil);
				  //document.getElementById('yenisitil').value = '_css/sitil.css';
			    break    
				case 'sitil2':
				  document.getElementById('ss').href = '_css/sitil2.css';
				  setCookie('sitil',"",-1)
				  setCookie('sitil',"sitil2",365);
		  		  sitil=getCookie('sitil');
				  //alert(sitil);
				  //document.getElementById('yenisitil').value = '_css/sitil2.css';
			    break    
				case 'sitil3':
				  document.getElementById('ss').href = '_css/sitil3.css';
				  setCookie('sitil',"",-1)
				  setCookie('sitil',"sitil3",365);
		  		  sitil=getCookie('sitil');
				  //alert(sitil);
				  //document.getElementById('yenisitil').value = '_css/sitil3.css';
			    break    
				case 'sitil4':
				  document.getElementById('ss').href = '_css/sitil4.css';
				  setCookie('sitil',"",-1)
				  setCookie('sitil',"sitil4",365);
		  		  sitil=getCookie('sitil');
				  //alert(sitil);
				  //document.getElementById('yenisitil').value = '_css/sitil4.css';
			    break    
		  }
	}
function getCookie(c_name)
    {
		if (document.cookie.length>0)
		   {
			  c_start=document.cookie.indexOf(c_name + "=")
			  if (c_start!=-1)
			     { 
				    c_start=c_start + c_name.length+1;
				    c_end=document.cookie.indexOf(";",c_start);
				    if (c_end==-1) c_end=document.cookie.length;
					//alert(unescape(document.cookie.substring(c_start,c_end));
				    return unescape(document.cookie.substring(c_start,c_end));
			    } 
		   }
		return "";
	}

function setCookie(c_name,value,expiredays)
{
//var exdate=new Date()exdate.setDate(exdate.getDate()+expiredays)
//document.cookie=c_name+ "=" +escape(value)+
//((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
var expireDate = new Date()
//set "expstring" to either future or past date, to set or delete cookie, respectively
var expstring=(typeof expiredays!="undefined")? expireDate.setDate(expireDate.getDate()+parseInt(expiredays)) : expireDate.setDate(expireDate.getDate()-5)
document.cookie = c_name+"="+value+"; expires="+expireDate.toGMTString()+";";
}
function checkCookie()
	{
		document.getElementById('ss').href = '';
		sitil=getCookie('sitil');
		//alert(sitil);
		if (sitil!=null && sitil!="")
		   {
		   		
				chancestyle(sitil);
				//alert(sitil);
				//alert("aa");
				//document.getElementById('ss').href = '_css/sitil4.css';
				//alert('Welcome again '+username+'!')
		   }
		else 
		  {
			  //username=prompt('Please enter your name:',"")
			  //if (username!=null && username!="")
				 //{
				    
					son_sitil='sitil1';
					setCookie('sitil',son_sitil,365);
					//document.getElementById('ss').href = '';
					sitil=getCookie('sitil');
					chancestyle(sitil);
					//alert(sitil);
					//alert("bb");
			     //}
 		  }
	}