function Trimall(szWhat)
				{
					return(szWhat.replace(/^\s*|\s*$/g, ""));
				}				
						
				function do_login(log,frm)
				{
					
					if(document.forms[0].imglgn)
					{
						if(Trimall(document.forms[0].eusername.value) == "")
						{
							alert("User Name should not be empty");
							document.forms[0].eusername.focus();
							return false;
						}
						if(Trimall(document.forms[0].epassword.value) == "")
						{
							alert("Password should not be empty");
							document.forms[0].epassword.focus();
							return false;
						}
					}
					var str=""
					var temp = location.href.split("&") ;
					var temp1=location.href.split("?") ;
					
					if(temp.length==1)
					{
						
						for(i=0;i<temp1.length;i++)
						{
							if(temp1[i]!="login=yes" )
							{
								if(temp[i]!="logout=yes")
								{
									if(i==0)
									{
										str=str+temp1[i]+"?"	
									}
									else
									{
										str=str+temp1[i]
									}
								}

							}
							
						}
						if(temp1.length==2  && temp.length==1)
						{
							if (log=="login")
							{	
								str=str.replace("logout=yes","login=yes");
								//str=str+"login=yes"					
							}
							else if (log=="logout")
							{	
								str=str+"logout=yes"					
							}	
						}
						else 
						if(temp1.length==1  && temp.length==1)
						{
							if (log=="login")
							{	
								str=str+"login=yes"					
							}
							else if (log=="logout")
							{	
								str=str+"logout=yes"					
							}	
						}
						else
						{
							if (log=="login")
							{	
								str=str+"&login=yes"					
							}
							else if (log=="logout")
							{	
								str=str+"&logout=yes"					
							}
						}
											
					}
					else
					{
					
						for(i=0;i<temp.length;i++)
						{
							if(temp[i]!="login=yes" )
							{
								if(temp[i]!="logout=yes")
								{
									str=str+temp[i]+"&"
								}

							}
						}
						if (log=="login")
						{	
							str=str+"login=yes"					
						}
						else if (log=="logout")
						{	
							str=str+"logout=yes"					
						}
					}
					
					//alert(document.forms[1].name);
					
					document.forms[0].action=str;
					document.forms[0].submit();
					
				}