function tab(show,hide,show2)
{
	elem1=document.getElementById("overview")
	elem1.style.display= "none";
	elem1a=document.getElementById("overview_1")
	elem1a.style.display= "block";
	elem1b=document.getElementById("overview_2")
	elem1b.style.display= "none";
	elem2=document.getElementById("promoters")
	elem2.style.display= "none";
	elem2a=document.getElementById("promoters_1")
	elem2a.style.display= "block";
	elem2b=document.getElementById("promoters_2")
	elem2b.style.display= "none";
	elem3=document.getElementById("a-operation")
	elem3.style.display= "none";
	elem3a=document.getElementById("a-operation_1")
	elem3a.style.display= "block";
	elem3b=document.getElementById("a-operation_2")
	elem3b.style.display= "none";
	//If U need U can add the no of tab here
	elem_show1=document.getElementById(show)
	elem_show1.style.display= "block";
	elem_show2=document.getElementById(hide)
	elem_show2.style.display= "none";
	elem_show3=document.getElementById(show2)
	elem_show3.style.display= "block";
}
function showall()
{
	elem1=document.getElementById("overview")
	elem1.style.display= "none";
	elem2=document.getElementById("overview_1")
	elem2.style.display= "block";
	elem3=document.getElementById("overview_2")
	elem3.style.display= "none";
	elem4=document.getElementById("promoters")
	elem4.style.display= "none";
	elem5=document.getElementById("promoters_1")
	elem5.style.display= "block";
	elem6=document.getElementById("promoters_2")
	elem6.style.display= "none";
	elem7=document.getElementById("a-operation")
	elem7.style.display= "none";
	elem8=document.getElementById("a-operation_1")
	elem8.style.display= "block";
	elem9=document.getElementById("a-operation_2")
	elem9.style.display= "none";
	//If U need U can add the no of tab here
}