if(document.getElementById){
	oMain = document.getElementById("main")
	oContent = document.getElementById("content")
	oSubmenus = document.getElementById("submenus")
	oMain.h = oMain.offsetHeight||oMain.style.height
	oContent.h = oContent.offsetHeight||oContent.style.height
	oSubmenus.h = oSubmenus.offsetHeight||oSubmenus.style.height
	if(oContent.h < oSubmenus.h){
		oMain.style.height = oSubmenus.h +10 + "px"
	}
}