function checkBrowserName(name){  
   var agent = navigator.userAgent.toLowerCase();  
   if (agent.indexOf(name.toLowerCase())>-1) {  
     return true;  
   }  
   return false;  
 }  
function contentsize() {
	if(checkBrowserName('MSIE')){  
	    obj = document.getElementsByTagName("div");
		var newHeight = document.documentElement.clientHeight-307;
		newHeight = newHeight+"px";
		obj['content'].style.height = newHeight;
	} else { 
		obj = document.getElementsByTagName("div");
		var newHeight = window.innerHeight-322;
		newHeight = newHeight+"px";
		obj['content'].style.height = newHeight;
	}
}