function setHight() {
	if(navigator.userAgent.indexOf('Firefox')>=0)
	{
		var hg;
		if(screen.width<=1280)
		{
			hg= Math.max(document.documentElement.clientHeight, document.body.clientHeight)-186;
			$("link")[0].href="Images/css/8firefox.css";
			$("#menu").css("min-height",hg);
			$("#context").css("min-height",hg);
			var a=$("#context").css("height");
			$("#menu").css("height",a);
		}
		else
		{
			hg= Math.max(document.documentElement.clientHeight, document.body.clientHeight)-190;
			$("link")[0].href="Images/css/firefox.css";
			$("#menu").css("min-height",hg);
			$("#context").css("min-height",hg);
			var a=$("#context").css("height");
			$("#menu").css("height",a);
		}
		
		
	}
	else
	{
		var hg;
		if(screen.width<=1280)
		{
			hg= Math.max(document.documentElement.clientHeight, document.body.clientHeight)-166;
			
		}
		else
		{
			hg= Math.max(document.documentElement.clientHeight, document.body.clientHeight)-190;
		}
		document.getElementById("context").style.height = hg;	
		document.getElementById("menu").style.height = hg;
	}
}