function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		  // alert("Invalid E-mail ID")
			changeText("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		  // alert("Invalid E-mail ID")
			changeText("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		   // alert("Invalid E-mail ID")
			changeText("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		   // alert("Invalid E-mail ID")
			changeText("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    //alert("Invalid E-mail ID")
			changeText("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		   // alert("Invalid E-mail ID")
			changeText("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(" ")!=-1){
		    //alert("Invalid E-mail ID")
			changeText("Invalid E-mail ID")
		    return false
		 }

 		 return true
	}

function ValidateForm(){
	
	var name=document.frmSample.txtName
	var message=document.frmSample.txtAreaMessage
	
	var emailID=document.frmSample.txtEmail

	if ((name.value==null)||(name.value=="")){
		//	alert("Please Enter your Email ID")
			changeText("Please Enter your Name ")
			name.focus()
			return false
		}
			
	
	
	
	
	if ((emailID.value==null)||(emailID.value=="")){
	//	alert("Please Enter your Email ID")
		changeText("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	
	
	if ((message.value==null)||(message.value=="")){
		//	alert("Please Enter your Email ID")
			changeText("Please Enter your Message")
			message.focus()
			return false
		}
		
	
	
	return true
 }

function changeText(str){
	var oldHTML = str;
	var newHTML = "<p class='error_colour'>" + oldHTML + "</p>";

	document.getElementById('errorMessage').innerHTML = newHTML;
}


function ValidateFormenquery(){
	
	var emailID=document.frmSample.txtEmail
	var message=document.frmSample.txtAreaMessage	
		
	
	if ((emailID.value==null)||(emailID.value=="")){
		//alert("Pleas     e Enter your Email ID")
		changeText("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	
	if (echeckenquiry(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	
	
	if ((message.value==null)||(message.value=="")){
		//	alert("Please Enter your Email ID")
			changeText("Please Enter your Message")
			message.focus()
			return false
		}
			
	return true
 }

function echeckenquiry(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	  // alert("Invalid E-mail ID")
		changeText("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	  // alert("Invalid E-mail ID")
		changeText("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	   // alert("Invalid E-mail ID")
		changeText("Invalid E-mail ID")
	    return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	   // alert("Invalid E-mail ID")
		changeText("Invalid E-mail ID")
	    return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    //alert("Invalid E-mail ID")
		changeText("Invalid E-mail ID")
	    return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	   // alert("Invalid E-mail ID")
		changeText("Invalid E-mail ID")
	    return false
	 }

	 if (str.indexOf(" ")!=-1){
	    //alert("Invalid E-mail ID")
		changeText("Invalid E-mail ID")
	    return false
	 }

		 return true
}