function getCookie(keyname){
	tmp=document.cookie+";";
	index1=tmp.indexOf(keyname,0);
		if (index1 !=-1){
			tmp=tmp.substring(index1,tmp.length);
			index2=tmp.indexOf("=",0)+1;
			index3=tmp.indexOf(";",index2);
			return(tmp.substring(index2,index3));
			}
	return("");
}