function validation()
{
	if(document.microarray.geneId.value == "")
	{
	   alert("Please enter Gene ID or Gene symbol!");
	   return false;	
	}
	
	var tempStr  = 	document.microarray.geneId.value;
	
	if(tempStr.match("[~!#$%^&*()?/\\';]"))
	{
		alert("Please enter Gene ID or Gene symbol!");
		return false;
	}

	document.microarray.action="geneIdRes.php";
	document.microarray.method="post";
	document.microarray.submit(); 
}
function showEngine()
{
	var status = document.getElementById("SearchEng").style.display;
	if(status == "none")
	{
		document.getElementById("SearchEng").style.display = 'block';
	        document.statusImg.src = "images/asc1.gif";

	}
	else{
		document.getElementById("SearchEng").style.display = 'none';
	        document.statusImg.src = "images/desc1.gif";
	}
}
function showLegends()
{
	var status = document.getElementById("hidetog").style.display;
	if(status == "none")
	{
		document.getElementById("hidetog").style.display = 'block';
	        document.legStImg.src = "images/asc1.gif";

	}
	else{
		document.getElementById("hidetog").style.display = 'none';
	        document.legStImg.src = "images/desc1.gif";
	}
}