function show_it(n){
var n;
if(n == 1){
	//alert(n);
	document.getElementById("tab_1").style.display = "block";
	document.getElementById("tab_2").style.display = "none";
	document.getElementById("tab_3").style.display = "none";
	document.getElementById("tab_4").style.display = "none";
	document.getElementById("title_1").background="/english/images/title_bgimage1.gif";
	document.getElementById("title_2").background="";
	document.getElementById("title_3").background="";
	document.getElementById("title_4").background="";
}
else if(n == 2){
	//alert(n);
	document.getElementById("tab_1").style.display = "none";
	document.getElementById("tab_2").style.display = "block";
	document.getElementById("tab_4").style.display = "none";
	document.getElementById("tab_3").style.display = "none";
	document.getElementById("title_1").background="";
	document.getElementById("title_2").background="/english/images/title_bgimage1.gif";
	document.getElementById("title_3").background="";
	document.getElementById("title_4").background="";
}
else if(n == 3){
	//alert(n);
	document.getElementById("tab_1").style.display = "none";
	document.getElementById("tab_2").style.display = "none";
	document.getElementById("tab_3").style.display = "block";
	document.getElementById("tab_4").style.display = "none";
	document.getElementById("title_1").background="";
	document.getElementById("title_2").background="";	
	document.getElementById("title_3").background="/english/images/title_bgimage1.gif";
	document.getElementById("title_4").background="";

}
else if(n == 4){
	//alert(n);
	document.getElementById("tab_1").style.display = "none";
	document.getElementById("tab_2").style.display = "none";
	document.getElementById("tab_3").style.display = "none";
	document.getElementById("tab_4").style.display = "block"
    document.getElementById("title_1").background="";
	document.getElementById("title_2").background="";
	document.getElementById("title_3").background="";
	document.getElementById("title_4").background="url(/english/images/title_bgimage1.gif) no-repeat";
}
else if(n == 5){
	//alert(n);
	document.getElementById("tab_5").style.display = "block";
	document.getElementById("tab_6").style.display = "none";
	document.getElementById("tab_7").style.display = "none";
	document.getElementById("tab_8").style.display = "none";
	document.getElementById("title_5").background="/english/images/title_bgimage1.gif";
	document.getElementById("title_6").background="";
	document.getElementById("title_7").background="";
	document.getElementById("title_8").background="";
}
else if(n == 6){
	//alert(n);
	document.getElementById("tab_5").style.display = "none";
	document.getElementById("tab_6").style.display = "block";
	document.getElementById("tab_8").style.display = "none";
	document.getElementById("tab_7").style.display = "none";
	document.getElementById("title_5").background="";
	document.getElementById("title_6").background="/english/images/title_bgimage1.gif";
	document.getElementById("title_7").background="";
	document.getElementById("title_8").background="";
}
else if(n == 7){
	//alert(n);
	document.getElementById("tab_5").style.display = "none";
	document.getElementById("tab_6").style.display = "none";
	document.getElementById("tab_7").style.display = "block";
	document.getElementById("tab_8").style.display = "none";
	document.getElementById("title_5").background="";
	document.getElementById("title_6").background="";	
	document.getElementById("title_7").background="/english/images/title_bgimage1.gif";
	document.getElementById("title_8").background="";

}
else if(n == 8){
	//alert(n);
	document.getElementById("tab_5").style.display = "none";
	document.getElementById("tab_6").style.display = "none";
	document.getElementById("tab_7").style.display = "none";
	document.getElementById("tab_8").style.display = "block"
    document.getElementById("title_5").background="";
	document.getElementById("title_6").background="";
	document.getElementById("title_7").background="";
	document.getElementById("title_8").background="url(/english/images/title_bgimage1.gif) no-repeat";
}
}