function InitTab(selectedTabIndex)//this control builds the tab navigation menu
{
		var button_blog = document.getElementById("button_blog");
		var button_learn = document.getElementById("button_learn");
		var button_awards = document.getElementById("button_awards");
		var button_products = document.getElementById("button_products");
		var div_blog = document.getElementById("div_blog");
		var div_learn = document.getElementById("div_learn");
		var div_awards = document.getElementById("div_awards");
		var div_products = document.getElementById("div_products");
		var lm_link0 = document.getElementById("lm_link0");
		var lm_link1 = document.getElementById("lm_link1");
		var lm_link2 = document.getElementById("lm_link2");
		var lm_link3 = document.getElementById("lm_link3");
		
		if(selectedTabIndex == 0 )
		{
				button_blog.className = 'go_SelectedTab';
				button_learn.className = 'go_UnSelectedTab';
				button_awards.className = 'go_UnSelectedTab';
				button_products.className = 'go_UnSelectedTabLast';

				div_blog.style.display = 'block';
				div_learn.style.display = 'none';
				div_awards.style.display = 'none';
				div_products.style.display = 'none';
				
				lm_link0.className = 'LinkOrange';
				lm_link1.className = 'LinkNoLine';
				lm_link2.className = 'LinkNoLine';
				lm_link3.className = 'LinkNoLine';
		}else if(selectedTabIndex == 1 )
		{
				button_blog.className = 'go_UnSelectedTab';
				button_learn.className = 'go_SelectedTab';
				button_awards.className = 'go_UnSelectedTab';
				button_products.className = 'go_UnSelectedTabLast';
				
				div_blog.style.display = 'none';
				div_learn.style.display = 'block';
				div_awards.style.display = 'none';
				div_products.style.display = 'none';
				
				lm_link0.className = 'LinkNoLine';
				lm_link1.className = 'LinkOrange';
				lm_link2.className = 'LinkNoLine';
				lm_link3.className = 'LinkNoLine';
		}else if(selectedTabIndex == 2 )
		{
				button_blog.className = 'go_UnSelectedTab';
				button_learn.className = 'go_UnSelectedTab';
				button_awards.className = 'go_SelectedTab';
				button_products.className = 'go_UnSelectedTabLast';
				
				div_blog.style.display = 'none';
				div_learn.style.display = 'none';
				div_awards.style.display = 'block';
				div_products.style.display = 'none';
				
				lm_link0.className = 'LinkNoLine';
				lm_link1.className = 'LinkNoLine';
				lm_link2.className = 'LinkOrange';
				lm_link3.className = 'LinkNoLine';
		}else if(selectedTabIndex == 3 )
		{
				button_blog.className = 'go_UnSelectedTab';
				button_learn.className = 'go_UnSelectedTab';
				button_awards.className = 'go_UnSelectedTab';
				button_products.className = 'go_SelectedTabLast';
				
				div_blog.style.display = 'none';
				div_learn.style.display = 'none';
				div_awards.style.display = 'none';
				div_products.style.display = 'block';
				
				lm_link0.className = 'LinkNoLine';
				lm_link1.className = 'LinkNoLine';
				lm_link2.className = 'LinkNoLine';
				lm_link3.className = 'LinkOrange';
		}
}